US Patent No: 6,161,130

Number of patents in Portfolio can not be more than 2000

Technique which utilizes a probabilistic classifier to detect "junk" e-mail by automatically updating a training and re-training the classifier based on the updated training set

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Abstract

A technique, specifically a method and apparatus that implements the method, which through a probabilistic classifier (370) and, for a given recipient, detects electronic mail (e-mail) messages, in an incoming message stream, which that recipient is likely to consider "junk". Specifically, the invention discriminates message content for that recipient, through a probabilistic classifier (e.g., a support vector machine) trained on prior content classifications. Through a resulting quantitative probability measure, i.e., an output confidence level, produced by the classifier for each message and subsequently compared against a predefined threshold, that message is classified as either, e.g., spam or legitimate mail, and, e.g., then stored in a corresponding folder (223, 227) for subsequent retrieval by and display to the recipient. Based on the probability measure, the message can alternatively be classified into one of a number of different folders, depicted in a pre-defined visually distinctive manner or simply discarded in its entirety.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MICROSOFT CORPORATIONREDMOND, WA24565

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dumais, Susan T Kirkland, WA 97 1969
Heckerman, David E Bellevue, WA 124 2857
Horvitz, Eric Kirkland, WA 111 3695
Platt, John C Redmond, WA 137 3244
Sahami, Mehran Redwood City, CA 37 961

Cited Art

Patent Info (Count) # Cites Year
 
ANTI-SPAM TECHNOLOGY, LLC (1)
6,023,723 Method and system for filtering unwanted junk e-mail utilizing a plurality of filtering mechanisms 333 1997
 
HTC CORPORATION (1)
5,377,354 Method and system for sorting and prioritizing electronic mail messages 404 1993
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
6,003,027 System and method for determining confidence levels for the results of a categorization system 100 1997
 
LUCENT TECHNOLOGIES INC. (1)
5,619,648 Message filtering techniques 441 1994
 
PINPOINT INCORPORATED (1)
5,835,087 System for generation of object profiles for a system for customized electronic identification of desirable objects 802 1995
 
PURESPEECH, INC. (1)
5,638,487 Automatic speech recognition 73 1994

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MICROSOFT CORPORATION (83)
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6,714,967 Integration of a computer-based message priority system with mobile electronic devices 36 1999
6,816,847 computerized aesthetic judgment of images 15 1999
6,502,082 Modality fusion for object tracking with training system and method 62 1999
6,728,690 Classification system trainer employing maximum margin back-propagation with probabilistic outputs 42 1999
7,072,942 Email filtering methods and systems 49 2000
6,938,024 Transmitting information given constrained resources 32 2000
7,562,147 Bi-directional HTTP-based reliable messaging protocol and system utilizing same 3 2000
6,718,315 System and method for approximating probabilities using a decision tree 7 2000
6,985,950 System for creating a space-efficient document categorizer for training and testing of automatic categorization engines 2 2001
7,298,903 Method and system for separating text and drawings in digital ink 3 2001
7,043,506 Utility-based archiving 8 2001
6,901,398 System and method for constructing and personalizing a universal information classifier 63 2001
6,978,266 Determining a rating for a collection of documents 6 2001
6,938,025 Method and apparatus for automatically determining salient features for object classification 2 2001
6,826,576 Very-large-scale automatic categorizer for web content 15 2001
8,046,832 Spam detector with challenges 6 2002
7,149,801 Memory bound functions for spam deterrence and the like 20 2002
7,171,450 Framework to enable integration of anti-spam technologies 23 2003
8,335,683 System for using statistical classifiers for spoken language understanding 0 2003
7,249,162 Adaptive junk message filtering system 40 2003
7,219,148 Feedback loop for spam prevention 67 2003
7,483,947 Message rendering for identification of content features 7 2003
8,166,392 Method for automatically assigning priorities to documents and messages 0 2003
7,272,853 Origination/destination features and lists for spam prevention 68 2003
7,711,779 Prevention of outgoing spam 12 2003
7,519,668 Obfuscation of spam filter 4 2003
7,565,403 Use of a bulk-email filter within a system for classifying messages for urgency or importance 16 2003
7,337,181 Methods for routing items for communications based on a measure of criticality 11 2003
7,533,148 Framework to enable integration of anti-spam technologies 4 2003
7,287,012 Machine-learned approach to determining document relevance for search over large electronic collections of documents 8 2004
7,184,929 Exponential priors for maximum entropy models 6 2004
7,543,053 Intelligent quarantining for spam prevention 5 2004
8,214,438 (More) advanced spam detection features 0 2004
7,444,384 Integration of a computer-based message priority system with mobile electronic devices 12 2004
7,233,954 Methods for routing items for communications based on a measure of criticality 4 2004
7,464,264 Training filters for detecting spasm based on IP addresses and text-related features 25 2004
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7,191,159 Transmitting information given constrained resources 1 2004
7,664,819 Incremental anti-spam lookup and update service 4 2004
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7,827,244 Storing message rules in global form for transfer between servers 0 2004
7,917,587 Method and system for prioritizing communications based on interpersonal relationships 1 2004
7,904,517 Challenge response systems 3 2004
7,660,865 Spam filtering with probabilistic secure hashes 3 2004
7,567,895 Method and system for prioritizing communications based on sentence classifications 1 2004
7,590,603 Method and system for classifying and identifying messages as question or not a question within a discussion thread 4 2004
7,293,013 System and method for constructing and personalizing a universal information classifier 6 2004
7,653,812 Method and system for evaluating confidence in a sending domain to accurately assign a trust that a communication is not unwanted 1 2004
7,577,984 Method and system for a sending domain to establish a trust that its senders communications are not unwanted 1 2004
7,519,818 Method and system for processing a communication based on trust that the communication is not unwanted as assigned by a sending domain 1 2004
7,899,866 Using message features and sender identity for email spam filtering 5 2004
7,359,899 Determining a rating for a collection of documents 1 2005
7,464,093 Methods for routing items for communications based on a measure of criticality 1 2005
7,340,376 Exponential priors for maximum entropy models 9 2005
7,219,035 Exponential priors for maximum entropy models 3 2005
7,930,353 Trees of classifiers for detecting email spam 5 2005
8,065,370 Proofs to filter spam 1 2005
7,548,904 Utility-based archiving 0 2005
7,433,859 Transmitting information given constrained resources 0 2005
7,483,813 Exponential priors for maximum entropy models 0 2006
8,224,905 Spam filtration utilizing sender activity data 1 2006
8,065,307 Parsing, analysis and scoring of document content 2 2006
7,665,131 Origination/destination features and lists for spam prevention 6 2007
8,364,617 Resilient classification of data 0 2007
7,873,583 Combining resilient classifiers 1 2007
7,558,832 Feedback loop for spam prevention 2 2007
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7,640,313 Adaptive junk message filtering system 3 2007
7,792,780 Updating an engine using a description language 0 2007
8,375,052 Outgoing message monitor 0 2007
8,144,841 Multimedia spam determination using speech conversion 0 2007
8,112,268 Method and system for prioritizing communications based on sentence classifications 0 2008
8,402,378 Reactive avatars 0 2008
8,250,159 Message rendering for identification of content features 0 2009
8,346,800 Content-based information retrieval 0 2009
8,250,144 Multiple avatar personalities 1 2009
8,121,965 Updating an engine using a description language 0 2010
8,464,342 Adaptively selecting electronic message scanning rules 0 2010
 
SYMANTEC CORPORATION (51)
6,981,252 Method and apparatus for automatically uninstalling software on a network 7 2001
7,882,193 Apparatus and method for weighted and aging spam filtering rules 9 2002
7,367,056 Countering malicious code infections to computer files that have been infected more than once 2 2002
7,483,993 Temporal access control for computer virus prevention 3 2002
7,469,419 Detection of malicious computer code 10 2002
7,337,471 Selective detection of malicious computer code 10 2002
7,260,847 Antivirus scanning in a hard-linked environment 6 2002
7,249,187 Enforcement of compliance with network security policies 17 2002
7,373,664 Proactive protection against e-mail worms and spam 4 2002
7,293,290 Dynamic detection of computer worms 4 2003
7,246,227 Efficient scanning of stream based data 3 2003
7,203,959 Stream scanning through network proxy servers 13 2003
7,546,638 Automated identification and clean-up of malicious computer code 0 2003
7,680,886 Suppressing spam using a machine learning based spam filter 2 2003
7,373,519 Distinguishing legitimate modifications from malicious modifications during executable computer file modification analysis 5 2003
7,650,382 Detecting spam e-mail with backup e-mail server traps 0 2003
7,366,919 Use of geo-location data for spam detection 6 2003
7,293,063 System utilizing updated spam signatures for performing secondary signature-based analysis of a held e-mail to improve spam email detection 47 2003
7,739,278 Source independent file attribute tracking 0 2003
7,832,011 Method and apparatus for detecting malicious code in an information handling system 0 2003
7,185,332 Multi-tiered incremental software updating 30 2003
7,921,159 Countering spam that uses disguised characters 2 2003
7,624,110 Method, system, and computer program product for security within a global computer network 5 2003
7,130,981 Signature driven cache extension for stream based scanning 6 2004
7,861,304 Pattern matching using embedded functions 2 2004
7,831,667 Method and apparatus for filtering email spam using email noise reduction 4 2004
7,484,094 Opening computer files quickly and safely over a network 3 2004
7,373,667 Protecting a computer coupled to a network from malicious code infections 2 2004
8,145,710 System and method for filtering spam messages utilizing URL filtering module 0 2004
7,509,680 Detecting computer worms as they arrive at local computers through open network shares 6 2004
7,490,244 Blocking e-mail propagation of suspected malicious computer code 0 2004
7,555,524 Bulk electronic message detection by header similarity analysis 0 2004
8,271,588 System and method for filtering fraudulent email messages 2004
7,546,349 Automatic generation of disposable e-mail addresses 11 2004
7,565,686 Preventing unauthorized loading of late binding code into a process 3 2004
7,640,590 Presentation of network source and executable characteristics 4 2004
8,135,778 Method and apparatus for certifying mass emailings 0 2005
7,941,490 Method and apparatus for detecting spam in email messages and email attachments 3 2005
8,010,609 Method and apparatus for maintaining reputation lists of IP addresses to detect email spam 1 2005
7,739,337 Method and apparatus for grouping spam email messages 4 2005
7,975,303 Efficient file scanning using input-output hints 0 2005
7,895,654 Efficient file scanning using secure listing of file modification times 0 2005
7,739,494 SSL validation and stripping using trustworthiness factors 0 2005
8,332,947 Security threat reporting in light of local security tools 0 2006
7,634,545 System and method for controlling distribution of network communications 1 2007
7,571,214 System and method for controlling distribution of network communications 0 2007
7,543,036 System and method for controlling distribution of network communications 0 2007
7,831,677 Bulk electronic message detection by header similarity analysis 0 2009
8,214,490 Compact input compensating reputation data tracking mechanism 2009
RE41940 Method and apparatus for filtering E-mail 0 2010
8,402,102 Method and apparatus for filtering email spam using email noise reduction 0 2010
 
FACEBOOK, INC. (25)
8,041,768 Voice instant messaging 0 2001
7,984,098 Video messaging 1 2001
7,765,484 Passive personalization of lists 0 2002
7,979,802 Providing supplemental contact information corresponding to a referenced individual 2 2002
7,222,157 Identification and filtration of digital communications 26 2002
8,132,110 Intelligently enabled menu choices based on online presence state in address book 4 2003
7,640,306 Reconfiguring an electronic message to effect an enhanced notification 4 2003
7,730,137 Restricting the volume of outbound electronic messages originated by a single entity 1 2003
7,949,759 Degrees of separation for handling communications 2 2003
7,945,674 Degrees of separation for handling communications 1 2003
7,548,956 Spam control based on sender account characteristics 6 2003
7,653,693 Method and system for capturing instant messages 6 2004
7,716,287 Organizing entries in participant lists based on communications strengths 4 2004
7,774,711 Automatic categorization of entries in a contact list 5 2005
7,765,265 Identifying users sharing common characteristics 7 2005
7,606,580 Personalized location information for mobile devices 20 2005
8,078,625 URL-based content categorization 0 2006
7,406,506 Identification and filtration of digital communications 5 2007
7,707,261 Identification and filtration of digital communications 2 2008
7,890,123 Personalized location information for mobile devices 12 2009
8,001,199 Reconfiguring an electronic message to effect an enhanced notification 2 2009
8,185,638 Degrees of separation for handling communications 1 2011
8,078,678 Video messaging 0 2011
8,452,849 Host-based intelligent results related to a character stream 0 2011
8,429,231 Voice instant messaging 0 2011
 
SECURE COMPUTING CORPORATION (24)
7,458,098 Systems and methods for enhancing electronic communication security 12 2002
7,124,438 Systems and methods for anomaly detection in patterns of monitored communications 36 2002
6,941,467 Systems and methods for adaptive message interrogation through multiple queues 45 2002
7,213,260 Systems and methods for upstream threat pushback 32 2003
7,694,128 Systems and methods for secure communication delivery 3 2003
8,132,250 Message profiling systems and methods 1 2005
7,089,590 Systems and methods for adaptive message interrogation through multiple queues 9 2005
7,225,466 Systems and methods for message threat management 16 2006
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7,693,947 Systems and methods for graphically displaying messaging traffic 4 2006
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7,519,994 Systems and methods for adaptive message interrogation through multiple queues 8 2006
8,069,481 Systems and methods for message threat management 0 2006
8,042,181 Systems and methods for message threat management 2 2006
8,214,497 Multi-dimensional reputation scoring 2007
8,179,798 Reputation based connection throttling 1 2007
7,949,716 Correlation and analysis of entity attributes 1 2007
7,937,480 Aggregation of reputation data 3 2007
7,779,156 Reputation based load balancing 4 2007
8,042,149 Systems and methods for message threat management 1 2007
8,185,930 Adjusting filter or classification control settings 3 2007
8,045,458 Prioritizing network traffic 0 2007
8,160,975 Granular support vector machine with random granularity 0 2008
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (22)
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6,370,526 Self-adaptive method and system for providing a user-preferred ranking order of object sets 97 1999
6,418,434 Two stage automated electronic messaging system 31 1999
7,310,624 Methods and apparatus for generating decision trees with discriminants and employing same in data classification 5 2000
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6,985,923 Method, article of manufacture and apparatus for processing redundant electronic mail messages 4 2000
7,099,855 System and method for electronic communication management 17 2001
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7,185,057 Individually specifying message output attributes in a messaging system 15 2001
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7,376,641 Information retrieval from a collection of data 7 2004
7,644,057 System and method for electronic communication management 4 2004
7,849,044 System and method for automatic task prioritization 1 2005
7,266,535 System and method for electronic communication management 6 2005
7,496,639 Individually specifying message output attributes in a messaging system 0 2006
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7,752,159 System and method for classifying text 4 2007
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GOOGLE INC. (14)
6,592,627 System and method for organizing repositories of semi-structured documents such as email 71 1999
7,840,639 Method and article of manufacture for an automatically executed application program associated with an electronic message 1 1999
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6,640,228 Method for detecting incorrectly categorized data 6 2000
7,734,627 Document similarity detection 11 2003
7,325,034 Method and apparatus for scalable peer-to-peer inquiries in a network of untrusted parties 4 2003
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8,087,068 Verifying access to a network account over multiple user communication portals based on security criteria 1 2005
8,037,144 Electronic message source reputation information system 3 2005
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7,680,891 CAPTCHA-based spam control for content creation systems 8 2006
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8,209,339 Document similarity detection 0 2010
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MCAFEE, INC. (14)
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6,732,157 Comprehensive anti-spam system, method, and computer program product for filtering unwanted e-mail messages 149 2002
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7,953,814 Stopping and remediating outbound messaging abuse 3 2006
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7,680,890 Fuzzy logic voting method and system for classifying e-mail using inputs from multiple spam classifiers 6 2006
8,363,793 Stopping and remediating outbound messaging abuse 0 2011
 
TREND MICRO INCORPORATED (12)
6,732,149 System and method for hindering undesired transmission or receipt of electronic messages 95 1999
6,779,021 Method and system for predicting and managing undesirable electronic mail 113 2000
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7,636,716 Method and architecture for blocking email spams 2 2004
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8,161,548 Malware detection using pattern classification 5 2005
7,779,472 Application behavior based malware detection 2 2005
7,840,958 Preventing spyware installation 1 2006
7,756,535 Lightweight content filtering system for mobile phones 2 2006
7,788,576 Grouping of documents that contain markup language code 0 2006
8,023,974 Lightweight SVM-based content filtering system for mobile phones 1 2007
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AT&T INTELLECTUAL PROPERTY I, L.P. (9)
7,558,824 Electronic mail (Email) Internet appliance methods and systems 0 2001
7,664,812 Phonetic filtering of undesired email messages 7 2003
7,610,341 Filtered email differentiation 5 2003
7,451,184 Child protection from harmful email 7 2003
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7,506,031 Filtering email messages corresponding to undesirable domains 7 2006
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7,949,718 Phonetic filtering of undesired email messages 1 2009
 
SONICWALL, INC. (9)
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8,271,603 Diminishing false positive classifications of unsolicited electronic-mail 1 2006
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7,653,698 Identifying e-mail messages from allowed senders 6 2007
7,562,122 Message classification using allowed items 25 2007
8,108,477 Message classification using legitimate contact points 3 2009
7,962,560 Updating hierarchical whitelists 0 2009
8,285,804 Declassifying of suspicious messages 0 2011
 
BRIGHT SUN TECHNOLOGIES (8)
7,325,249 Identifying unwanted electronic messages 10 2002
7,725,544 Group based spam classification 6 2003
7,089,241 Classifier tuning based on data similarities 43 2003
8,060,566 Automatically enabling the forwarding of instant messages 0 2005
7,577,709 Reliability measure for a classifier 3 2006
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7,954,155 Identifying unwanted electronic messages 0 2008
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IRONPORT SYSTEMS, INC. (8)
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UNITED STATES POSTAL SERVICE (8)
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American Telephone and Telegraph Company, AT&T Bell Laboratories (7)
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APPLE INC. (6)
7,076,527 Method and apparatus for filtering email 21 2001
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Bitdefender IPR Management Ltd. (6)
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D & S CONSULTANTS, INC. (6)
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GOZOOM.COM, INC. (6)
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7,593,920 System, method, and software for identifying historically related legal opinions 3 2002
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YAHOO! INC. (6)
6,965,919 Processing of unsolicited bulk electronic mail 50 2000
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7,321,922 Automated solicited message detection 15 2005
 
BDGB ENTERPRISE SOFTWARE S.A.R.L. (5)
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MINDSHARE DESIGN, INC. (5)
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The Trustees of Columbia University in the City of New York (5)
7,487,544 System and methods for detection of new malicious executables 12 2002
7,657,935 System and methods for detecting malicious email transmission 9 2002
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AOL INC. (4)
8,214,437 Online adaptive filtering of messages 0 2003
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AT&T INTELLECTUAL PROPERTY II, L.P. (4)
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8,051,134 Systems, methods, and programs for evaluating audio messages 1 2005
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CYBERSOFT, INC. (3)
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FOUNDRY NETWORKS, LLC (3)
7,711,790 Securing an accessible computer system 0 2000
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8,108,531 Securing an access provider 0 2010
 
GO DADDY OPERATING COMPANY, LLC (3)
7,320,020 Mail server probability spam filter 30 2003
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8,086,684 Detecting and mitigating undeliverable email 0 2010
 
OPEN INVENTION NETWORK, LLC (3)
6,757,713 Method for including a self-removing indicator in a self-removing message 50 2000
6,324,569 Self-removing email verified or designated as such by a message distributor for the convenience of a recipient 165 2000
6,701,347 Method for including a self-removing code in a self-removing email message that contains an advertisement 29 2000
 
ROCKWELL AUTOMATION TECHNOLOGIES, INC. (3)
6,944,616 System and method for historical database training of support vector machines 28 2001
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STRAGENT, LLC (3)
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ACUITY MOBILE, INC. (2)
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ALIBABA GROUP HOLDING LIMITED (2)
8,326,776 Network-based method and apparatus for filtering junk messages 0 2007
8,234,291 Method and system for determining junk information 0 2007
 
AT&T KNOWLEDGE VENTURES, L.P. (2)
7,379,537 Method and system for automating the creation of customer-centric interfaces 5 2002
7,551,723 System and method for the automated analysis of performance data 6 2004
 
BELLSOUTH INTELLECTUAL PROPERTY CORPORATION (2)
7,930,351 Identifying undesired email messages having attachments 1 2003
7,844,678 Filtering email messages corresponding to undesirable domains 3 2008
 
CLOUDMARK, INC. (2)
7,519,565 Methods and apparatuses for classifying electronic documents 14 2004
7,890,441 Methods and apparatuses for classifying electronic documents 2 2009
 
FORTINET, INC. (2)
7,565,445 Systems and methods for categorizing network traffic content 2 2004
7,979,543 Systems and methods for categorizing network traffic content 0 2009
 
General Interactive, Inc. (2)
6,718,367 Filter for modeling system and method for handling and routing of text-based asynchronous communications 32 1999
6,718,368 System and method for content-sensitive automatic reply message generation for text-based asynchronous communications 27 1999
 
HEALTH DISCOVERY CORPORATION (2)
7,617,163 Kernels and kernel methods for spectral data 4 2002
8,275,723 System for providing data analysis services using a support vector machine for processing data received from a remote source 0 2010
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (2)
6,823,323 Automatic classification method and apparatus 15 2001
7,558,766 Classification using enhanced feature sets 2 2006
 
KDL SCAN DESIGNS LLC (2)
6,904,168 Workflow system for detection and classification of images suspected as pornographic 48 2001
7,103,215 Automated detection of pornographic images 5 2004
 
L-3 COMMUNICATIONS CORPORATION (2)
7,292,663 Efficient space-time adaptive processing (STAP) filter for global positioning system (GPS) receivers 8 2004
7,471,744 Efficient space-time adaptive processing (STAP) filter for global positioning system (GPS) receivers 2 2007
 
MARKMONITOR INC. (2)
7,548,968 Policing internet domains 1 2004
7,493,403 Domain name ownership validation 12 2007
 
MESSAGEMIND, LLC (2)
7,941,491 System and method for dynamic adaptive user-based prioritization and display of electronic messages 5 2005
8,161,122 System and method of dynamically prioritized electronic mail graphical user interface, and measuring email productivity and collaboration trends 2 2007
 
ORACLE OTC SUBSIDIARY LLC (2)
6,883,014 Electronic message distribution 12 2000
7,024,462 Electronic message routing 3 2000
 
SBC TECHNOLOGY RESOURCES, INC. (2)
7,224,790 Method to identify and categorize customer's goals and behaviors within a customer service center environment 2 2000
7,076,049 Method of designing a telecommunications call center interface 21 2004
 
SPARKLINE DIGITAL LLC (2)
7,426,533 Messaging system 4 2001
7,958,196 Messaging system 1 2008
 
STERN, JULIAN N. (2)
7,970,718 Method for feature selection and for evaluating features identified as significant for classifying data 1 2010
8,095,483 Support vector machine—recursive feature elimination (SVM-RFE) 0 2010
 
SUSQUEHANNA INTERNATIONAL GROUP, LLP (2)
7,496,628 Electronic message filter 10 2003
8,250,158 Electronic message filter 1 2009
 
VERSATA DEVELOPMENT GROUP, INC. (2)
6,907,414 Hierarchical interface to attribute based database 17 2000
7,363,593 System and method for presenting information organized by hierarchical levels 7 2001
 
ABACA TECHNOLOGY CORPORATION (1)
6,772,196 Electronic mail filtering system and methods 124 2000
 
ANTI-SPAM TECHNOLOGY, LLC (1)
6,421,709 E-mail filter and method thereof 337 1999
 
APR SMARTLOGIK LIMITED (1)
6,556,987 Automatic text classification system 49 2000
 
Art Technology Group (1)
7,603,415 Classification of electronic messages using a hierarchy of rule sets 2 2000
 
AT&T CORP. (1)
6,615,242 Automatic uniform resource locator-based message filter 79 1999
 
AVAYA INC. (1)
8,001,609 Method and apparatus for preventing the inadvertent or unauthorized release of information 2 2004
 
AXWAY INC. (1)
7,257,564 Dynamic message filtering 26 2003
 
BRAINWARE, INC. (1)
8,321,357 Method and system for extraction 2009
 
BRIGHT MAIL INCORPORATED (1)
6,654,787 Method and apparatus for filtering e-mail 329 1998
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
7,024,426 Rationalization of data used in model of time varying event behavior 0 2000
 
CANON KABUSHIKI KAISHA (1)
8,281,257 Data display apparatus, method of controlling the same, and computer program 0 2009
 
Cipher Trust, Inc. (1)
7,096,498 Systems and methods for message threat management 35 2003
 
CISCO TECHNOLOGY, INC. (1)
7,653,695 Collecting, aggregating, and managing information relating to electronic messages 1 2005
 
CITRIX SYSTEMS, INC. (1)
8,001,244 Deep packet scan hacker identification 0 2010
 
CLEARSWIFT LIMITED (1)
7,801,960 Monitoring electronic mail message digests 1 2001
 
COLLACTIVE LTD. (1)
7,756,933 System and method for deterring rogue users from attacking protected legitimate users 1 2005
 
COMMTOUCH INC. (1)
6,330,590 Preventing delivery of unwanted bulk e-mail 151 1999
 
EMARK MONITOR, INC. (1)
7,346,605 Method and system for searching and monitoring internet trademark usage 15 2000
 
EMC CORPORATION (1)
7,954,151 Partial document content matching using sectional analysis 3 2004
 
ESCOM CORPORATION (1)
7,249,175 Method and system for blocking e-mail having a nonexistent sender address 102 2000
 
FUJITSU LIMITED (1)
6,865,715 Statistical method for extracting, and displaying keywords in forum/message board documents 27 1998
 
HARRIS TECHNOLOGY, LLC (1)
7,707,252 Automatic mail rejection feature 2 2000
 
HOSHIKO LLC (1)
7,428,576 Addressee-defined mail addressing system and method 3 2001
 
Ihance, Inc. (1)
7,680,892 Method and system for monitoring email and website behavior of an email recipient 2 2006
 
INTERSTATE ELECTRONICS CORPORATION (1)
7,197,095 Inverse fast fourier transform (IFFT) with overlap and add 5 2004
 
INVENTEC CORPORATION (1)
7,024,458 System and method for managing mail and file 4 2002
 
J2 GLOBAL COMMUNICATIONS, INC. (1)
7,184,160 Spam fax filter 2 2003
 
KABUSHIKI KAISHA TOSHIBA (1)
7,099,819 Text information analysis apparatus and method 9 2001
 
Mailshell.com, Inc. (1)
7,092,992 Web page filtering including substitution of user-entered email address 49 2001
 
MERCURY COMMUNICATIONS GROUP, LLC (1)
7,996,372 Automated response to solicited and unsolicited communications and automated collection and management of data extracted therefrom 1 2006
 
MX LOGIC (1)
7,051,077 Fuzzy logic voting method and system for classifying e-mail using inputs from multiple spam classifiers 49 2004
 
NOKIA CORPORATION (1)
7,624,154 Apparatus and method for handling electronic mail 0 2007
 
Nokia, Inc. (1)
7,328,250 Apparatus and method for handling electronic mail 1 2001
 
NTT DOCOMO, INC. (1)
7,426,510 Binary data categorization engine and database 1 2004
 
NUANCE COMMUNICATIONS, INC. (1)
7,389,230 System and method for classification of voice signals 5 2003
 
PASTEL LABO. CO., LTD (1)
6,937,842 Learning support message distribution program 2 2002
 
PSM MERGER SUB (DELAWARE), INC. C/O THOMA BRAVO, LLC (1)
8,463,861 Message classification using legitimate contact points 0 2012
 
Quinstreet, Inc. (1)
8,429,235 Apparatus and method for precluding e-mail distribution 0 2008
 
Radix Holdings, LLC (1)
8,112,483 Enhanced challenge-response 0 2004
 
REARDON, DAVID C. (1)
8,346,660 System and method for two-way transfer of funds and electronic content between summa account users with gathering of behavioral metrics and management of multiple currencies and escrow accounts 0 2009
 
RED HAT, INC. (1)
8,291,021 Graphical spam detection and filtering 0 2007
 
RESEARCH IN MOTION LIMITED (1)
8,265,665 Color differentiating a portion of a text message shown in a listing on a handheld communication device 0 2007
 
ROBERT BOSCH GMBH (1)
6,975,849 Method for customizing a car radio to individual requirements 4 2000
 
RULESPACE (1)
7,213,069 Category name service able to override the category name based on requestor privilege information 11 2001
 
SAP AMERICA, INC. (1)
7,178,099 Meta-content analysis and annotation of email and other electronic documents 21 2001
 
SBC TRI (1)
7,139,369 Interface and method of designing an interface 7 2002
 
SER SYSTEME AG (1)
6,976,207 Classification method and apparatus 26 2000
 
SOUTHWEST TECHNOLOGY INNOVATIONS LLC (1)
6,952,719 Spam detector defeating system 7 2001
 
TERADATA US, INC. (1)
6,622,909 Mining data from communications filtering request 5 2000
 
The Boeing Company (1)
8,272,064 Automated rule generation for a secure downgrader 2005
 
TOWNSHEND, BRENT (1)
6,829,635 System and method of automatically generating the criteria to identify bulk electronic mail 60 1998
 
TRUNTIDE, INC. (1)
7,415,504 System and method for controlling distribution of network communications 8 2002
 
TURN TIDE, INC. (1)
7,647,411 System and method for controlling distribution of network communications 15 2004
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
6,928,465 Redundant email address detection and capture system 23 2001
 
WEN CAPITAL, LLC (1)
6,965,921 Base of handheld device having email access function 2 2002
 
WHIZBANG! LABS (1)
6,892,189 Method for learning and combining global and local regularities for information extraction and classification 20 2001
 
Other [Check patent profile for assignment information] (6)
6,460,074 Electronic mail system 76 2000
7,251,640 Method and system for measuring interest levels of digital messages 8 2004
7,873,572 Financial transaction system with integrated electronic messaging, control of marketing data, and user defined charges for receiving messages 0 2005
7,711,667 Method and system for measuring interest levels of digital messages 0 2007
8,346,875 Intelligence of the crowd electronic mail management system 0 2008
8,352,364 Financial transaction system with integrated electronic messaging, control of marketing data, and user defined charges for receiving messages 0 2010