US Patent No: 5,745,879

Number of patents in Portfolio can not be more than 2000

Method and system for managing execution of licensed programs

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Abstract

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A distributed computer system employs a license management system to account for software product usage. A management policy having a variety of alternative styles and contexts is provided. Each licensed program upon start-up makes a call to a license server to check on whether usage is permitted, and the license server checks a database of the licenses, called product use authorizations, that it administers. If the particular use requested is permitted, a grant is returned to the requesting user node. The product use authorization is structured to define a license management policy allowing a variety of license alternatives by values called "style", "context", "duration" and "usage requirements determination method". The license administration may be delegated by the license server to a subsection of the organization, by creating another license management facility duplicating the main facility. The license server must receive a license document (a product use authorization) from an issuer of licenses, where a license document generator is provided. A mechanism is provided for one user node to make a call to use a software product located on another user node; this is referred to as a "calling card", by which a user node obtains permission to make a procedure call to use a program on another node.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.HOUSTON, TX26911

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wyman, Robert M Waltham, MA 5 1651

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (4)
4,937,863 Software licensing management system 329 1988
5,204,897 Management interface for license management system 494 1992
5,260,999 Filters in license management system 506 1992
5,438,508 License document interchange format for license management system 376 1994
 
CANTOR FIRZGERALD SECURITIES (1)
4,949,248 System for shared remote access of multiple application programs executing in one or more computers 255 1988
 
Effective Security Systems, Inc. (1)
4,791,565 Apparatus for controlling the use of computer software 165 1984
 
FLEXERA SOFTWARE LLC (1)
5,390,297 System for controlling the number of concurrent copies of a program in a network based on the number of available licenses 243 1987
 
HEWLETT-PACKARD COMPANY (1)
5,023,907 Network license server 533 1988
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,780,821 Method for multiple programs management within a network having a server computer and a plurality of remote computers 268 1986
 
NOVELL INTELLECTUAL PROPERTY HOLDINGS, INC. (1)
5,553,143 Method and apparatus for electronic licensing 274 1994
 
PRIME COMPUTER, INC. (1)
4,924,378 License mangagement system and license storage key 413 1988
 
RIDDELL, H. GEORGE (1)
5,103,476 Secure system for activating personal computer software at remote locations 420 1990
 
SUN MICROSYSTEMS, INC. (1)
5,138,712 Apparatus and method for licensing software on a network of computers 526 1989

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CONTENTGUARD HOLDINGS, INC. (41)
6,876,984 Method and apparatus for establishing usage rights for digital content to be created in the future 34 2001
7,743,259 System and method for digital rights management using a standard rendering engine 1 2002
7,853,531 Method and apparatus for supporting multiple trust zones in a digital rights management system 0 2002
7,774,279 Rights offering and granting 2 2002
8,275,716 Method and system for subscription digital rights management 0 2002
8,099,364 Digital rights management of content when content is a future live event 1 2002
7,974,923 Extensible rights expression processing system 0 2002
7,558,759 Systems and methods for creating, manipulating and processing rights and contract expressions using tokenized templates 6 2002
8,108,313 Rights expression profile system and method using templates 1 2003
7,970,709 Method and apparatus for client customization by executing software parts on plural servers 1 2003
8,543,511 System and method for specifying and processing legality expressions 0 2003
8,225,414 Method and apparatus for identifying installed software and regulating access to content 1 2003
7,913,095 Method and apparatus for providing a specific user interface in a system for managing content 0 2003
7,603,319 Method and apparatus for preserving customer identity in on-line transactions 1 2003
7,412,605 Method and apparatus for variable encryption of data 4 2003
8,069,116 System and method for supplying and managing usage rights associated with an item repository 1 2003
7,685,642 System and method for controlling rights expressions by stakeholders of an item 1 2003
7,840,488 System and method for granting access to an item or permission to use an item based on configurable conditions 2 2003
7,805,371 Rights expression profile system and method 4 2004
8,001,053 System and method for rights offering and granting using shared state variables 0 2004
7,774,280 System and method for managing transfer of rights using shared state variables 2 2004
8,660,961 Method, system, and device for license-centric content consumption 0 2004
7,725,401 Method and apparatus for establishing usage rights for digital content to be created in the future 2 2005
7,765,403 System for controlling the distribution and use of rendered digital works through watermarking 1 2005
7,809,644 Digital work structure 1 2005
7,609,848 Multi-stage watermarking process and system 1 2005
7,664,708 System for controlling the distribution and use of digital works using digital tickets 2 2005
7,720,767 Method and system to support dynamic rights and resources sharing 15 2005
7,523,072 System for controlling the distribution and use of digital works 21 2005
8,244,579 Method and apparatus for distributing enforceable property rights 0 2006
7,788,182 Method for loaning digital works 0 2006
8,271,350 Method and system for automatically publishing content 1 2007
8,275,709 Digital rights management of content when content is a future live event 2 2008
8,205,089 System for controlling the distribution and use of rendered digital works through watermarking 0 2009
7,907,749 Multi-stage watermarking process and system 0 2009
8,170,955 System and method for enforcing usage rights associated with digital content 0 2009
8,412,644 Method and apparatus for establishing usage rights for digital content to be created in the future 0 2010
8,078,542 System and method for managing transfer of rights using shared state variables 1 2010
8,489,900 Method and apparatus for providing a specific user interface in a system for managing content 0 2011
8,468,098 Method and system for subscription digital rights management 0 2012
8,442,916 Digital rights management of content when content is a future live event 0 2012
 
IGT (27)
7,695,363 Gaming device having multiple display interfaces 2 2003
7,526,736 Gaming device having touch activated alternating or changing symbol 4 2004
7,699,699 Gaming device having multiple selectable display interfaces based on player's wagers 4 2004
8,512,130 Gaming system with linked gaming machines that are configurable to have a same probability of winning a designated award 0 2006
8,137,188 Server based gaming system having multiple progressive awards 1 2006
8,128,491 Server based gaming system having multiple progressive awards 2 2006
7,841,939 Server based gaming system having multiple progressive awards 11 2006
7,568,973 Server based gaming system having multiple progressive awards 16 2006
7,862,430 Server based gaming system having system triggered loyalty award sequences 4 2006
7,674,180 Server based gaming system having system triggered loyalty award sequences 20 2006
8,616,959 Server based gaming system having system triggered loyalty award sequences 0 2007
8,251,791 Gaming system having multiple gaming machines which provide bonus awards 0 2007
8,221,226 Server based gaming system having system triggered loyalty award sequences 0 2007
8,210,930 Server based gaming system having system triggered loyalty award sequences 0 2007
8,206,212 Server based gaming system having system triggered loyalty award sequences 0 2007
8,021,230 Gaming system having multiple gaming machines which provide bonus awards 7 2007
8,012,009 Server based gaming system having system triggered loyalty award sequences 4 2007
7,993,199 Server based gaming system having system triggered loyalty award sequences 11 2007
7,985,133 Gaming system and method for providing an additional gaming currency 7 2007
7,963,847 Gaming system having multiple gaming machines which provide bonus awards 18 2007
7,905,778 Server based gaming system having multiple progressive awards 5 2007
7,780,523 Server based gaming system having multiple progressive awards 3 2007
7,585,223 Server based gaming system having multiple progressive awards 10 2007
8,221,218 Gaming device having multiple selectable display interfaces based on player's wagers 0 2010
8,216,062 Gaming system and method for providing an additional gaming currency 1 2011
8,262,469 Server based gaming system having system triggered loyalty award sequences 2 2011
8,500,542 Server based gaming system having system triggered loyalty award sequences 0 2012
 
AVAYA INC. (22)
7,885,896 Method for authorizing a substitute software license server 3 2002
8,041,642 Predictive software license balancing 2 2002
7,966,520 Software licensing for spare processors 0 2002
7,707,116 Flexible license file feature controls 2 2002
7,698,225 License modes in call processing 1 2002
7,681,245 Remote feature activator feature extraction 5 2002
7,228,567 License file serial number tracking 14 2002
7,216,363 Licensing duplicated systems 13 2002
7,890,997 Remote feature activation authentication file system 1 2003
7,260,557 Method and apparatus for license distribution 14 2003
7,373,657 Method and apparatus for controlling data and software access 8 2003
7,127,442 Ironclad notification of license errors 5 2003
7,353,388 Key server for securing IP telephony registration, control, and maintenance 25 2004
7,272,500 Global positioning system hardware key for software licenses 16 2004
7,707,405 Secure installation activation 10 2004
7,747,851 Certificate distribution via license files 3 2004
8,229,858 Generation of enterprise-wide licenses in a customer environment 3 2005
7,965,701 Method and system for secure communications with IP telephony appliance 1 2005
7,814,023 Secure download manager 6 2005
7,913,301 Remote feature activation authentication file system 2 2006
7,844,572 Remote feature activator feature extraction 4 2007
8,620,819 Remote feature activator feature extraction 0 2009
 
MICROSOFT CORPORATION (21)
5,925,127 Method and system for monitoring the use of rented software 171 1997
6,189,146 System and method for software licensing 272 1998
6,775,655 Rendering digital content in an encrypted rights-protected form 167 1999
7,136,838 Digital license and method for obtaining/providing a digital license 76 2000
7,051,005 Method for obtaining a black box for performing decryption and encryption functions in a digital rights management (DRM) system 40 2000
7,171,662 System and method for software licensing 100 2000
7,512,940 Methods and apparatus for downloading and/or distributing information and/or software resources based on expected utility 6 2001
7,343,297 System and related methods for managing and enforcing software licenses 22 2001
7,809,648 System and method for software licensing 9 2004
8,347,078 Device certificate individualization 0 2004
7,890,428 Flexible licensing architecture for licensing digital application 3 2005
7,644,442 Systems and methods for using machine attributes to deter software piracy in an enterprise environment 10 2005
8,091,142 Supplementary trust model for software licensing/commercial digital distribution policy 1 2005
8,438,645 Secure clock with grace periods 0 2005
7,680,744 Method for interdependently validating a digital content package and a corresponding digital license 5 2005
8,353,046 System and method for delivery of a modular operating system 1 2005
8,176,564 Special PC mode entered upon detection of undesired state 2 2005
7,694,153 Changing product behavior in accordance with license 8 2005
8,336,085 Tuning product policy using observed evidence of customer behavior 0 2005
8,181,265 Secure machine counting 1 2005
8,683,579 Software activation using digital licenses 0 2010
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (20)
6,339,826 Client-server system for maintaining a user desktop consistent with server application user access permissions 147 1998
6,510,466 Methods, systems and computer program products for centralized management of application programs on a network 172 1998
6,324,578 Methods, systems and computer program products for management of configurable application programs on a network 78 1998
6,728,766 Methods, systems and computer program products for license use management on a network 18 2001
7,069,293 Methods, systems and computer program products for distribution of application programs to a target station on a network 23 2001
7,130,829 Digital rights management 12 2001
7,137,114 Dynamically transferring license administrative responsibilities from a license server to one or more other license servers 1 2002
8,135,795 Method to provide on-demand resource access 0 2003
7,395,334 System for determining unreturned standby resource usage 1 2003
7,627,506 Method of providing metered capacity of temporary computer resources 1 2003
7,493,488 Method to disable on/off capacity in demand 3 2003
7,877,754 Methods, systems, and media to expand resources available to a logical partition 5 2003
7,266,815 Automated control of a licensed internal code update on a storage controller 5 2003
8,090,871 Determining a remote management processor's IP address 0 2003
8,074,223 Permanently activating resources based on previous temporary resource usage 2 2005
7,519,561 System, method and program to manage software licenses 2 2005
7,574,507 System for determining unreturned standby resource usage 1 2007
7,958,218 System for determining unreturned standby resource usage 0 2008
8,607,226 Solution for locally staged electronic software distribution using secure removable media 0 2008
8,086,856 Disabling on/off capacity on demand 0 2009
 
ADOBE SYSTEMS INCORPORATED (13)
7,149,721 Electronic content rights with and-or expression 6 2000
7,213,269 Application rights enabling 27 2002
8,660,960 Document digest allowing selective changes to a document 0 2002
7,278,168 Dynamic enabling of functionality in electronic document readers 17 2002
7,735,144 Document modification detection and prevention 5 2003
7,607,020 Communication with an external source application 0 2005
7,962,424 Overdraft licenses and license distribution 1 2006
7,752,140 Software license distribution and bypassing 2 2006
7,913,314 Application rights enabling 4 2007
7,698,559 Dynamic enabling of functionality in electronic document readers 7 2007
8,151,114 Dynamic enabling of functionality in electronic document readers 0 2010
8,533,480 Document modification detection and prevention 0 2010
8,256,016 Application rights enabling 0 2011
 
UNILOC LUXEMBOURG S. A. (11)
8,284,929 System of dependant keys across multiple pieces of related scrambled information 0 2006
8,566,960 System and method for adjustable licensing of digital products 0 2008
8,374,968 License auditing for distributed applications 0 2009
8,423,473 Systems and methods for game activation 0 2010
8,452,960 System and method for content delivery 0 2010
8,239,852 Remote update of computers based on physical device recognition 0 2010
8,213,907 System and method for secured mobile communication 1 2010
8,316,421 System and method for device authentication with built-in tolerance 1 2010
8,438,394 Device-bound certificate authentication 0 2011
8,671,060 Post-production preparation of an unprotected installation image for downloading as a protected software product 0 2011
8,613,110 Software piracy prevention through remote enforcement of an activation threshold 0 2012
 
PERSONALWEB TECHNOLOGIES, LLC (7)
7,949,662 De-duplication of data in a data processing system 19 2003
8,099,420 Accessing data in a data processing system 6 2004
8,082,262 Methods, systems, and devices supporting data access in a data processing system 6 2007
8,001,096 Computer file system using content-dependent file identifiers 8 2007
7,945,539 Distributing and accessing data in a data processing system 9 2007
7,945,544 Similarity-based access control of data in a data processing system 9 2007
7,802,310 Controlling access to data in a data processing system 9 2007
 
DIGITAL RIVER, INC. (6)
7,058,597 Apparatus and method for adaptive fraud screening for electronic commerce transactions 11 1999
7,617,124 Apparatus and method for secure downloading of files 3 2000
7,165,051 Electronic commerce system and method for detecting fraud 46 2005
8,271,396 Electronic commerce system and method for detecting fraud 2006
7,881,972 Electronic commerce system and method for detecting fraud 1 2006
8,050,980 Secure downloading of a file from a network system and method 1 2009
 
SONY CORPORATION (6)
7,272,859 Information providing device and method 10 2001
7,325,139 Information processing device, method, and program 7 2003
8,365,299 Information processing device and method, recording medium, and program 0 2005
7,891,010 Information providing apparatus and information providing method 1 2007
8,255,573 Communication network system, gateway, data communication method and program providing medium 0 2008
8,612,630 Communication network system, gateway, data communication method and program providing medium 0 2012
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (5)
6,098,054 Method of securing software configuration parameters with digital signatures 30 1997
7,257,554 Anonymous purchases while allowing verifiable identities for refunds returned along the paths taken to make the purchases 1 1999
6,453,305 Method and system for enforcing licenses on an open network 25 1999
7,200,575 Managing access to digital content 24 2001
8,082,547 Reallocating hardware resources among workloads in accordance with license rights 2 2006
 
SCA IPLA HOLDINGS INC. (5)
7,565,697 Systems and methods for preventing unauthorized use of digital content 5 2001
7,237,123 Systems and methods for preventing unauthorized use of digital content 29 2001
7,328,453 Systems and methods for the prevention of unauthorized use and manipulation of digital content 22 2002
8,117,667 Systems and methods for the prevention of unauthorized use and manipulation of digital content 1 2008
8,261,359 Systems and methods for preventing unauthorized use of digital content 0 2010
 
AUDIBLE, INC. (3)
7,765,308 Apparatus and method for authoring and maintaining a library of content and targeting content to a playback device 1 2001
7,979,914 Time-based digital content authorization 0 2009
8,572,272 Personalized time-shifted programming 0 2010
 
GENERAL ELECTRIC COMPANY (3)
6,272,469 Imaging system protocol handling method and apparatus 53 1998
6,901,371 Imaging system protocol handling method and apparatus 4 1999
6,988,074 Imaging system protocol handling method and apparatus 21 2000
 
KABUSHIKI KAISHA TOSHIBA (3)
6,477,649 Information recording apparatus, information reproducing apparatus, and information distribution system 65 1998
7,747,871 Information recording apparatus, information reproducing apparatus, and information distribution system 1 2002
7,343,495 Information recording apparatus, information reproducing apparatus, and information distribution system 8 2002
 
MOTOROLA SOLUTIONS, INC. (3)
7,970,430 Method and apparatus for setting and managing operational dynamics within cognitive radio networks 5 2006
7,797,263 Managing operation of a cognative radio by an authority 1 2006
7,743,121 Method and apparatus for setting up and managing operational environment in P2P wireless networks 3 2007
 
SAFENET, INC. (3)
7,716,348 License management system and method with license balancing 8 2000
6,968,384 License management system and method for commuter licensing 23 2000
6,842,896 System and method for selecting a server in a multiple server license management system 67 2000
 
UNILOC USA (3)
8,087,092 Method and apparatus for detection of tampering attacks 3 2006
7,908,662 System and method for auditing software usage 4 2008
8,160,962 Installing protected software product using unprotected installation image 0 2008
 
1E LIMITED (2)
8,463,792 Identifying software 0 2011
8,489,616 Identifying software 0 2012
 
ACTIVCARD IRELAND LIMITED (2)
6,721,891 Method of distributing piracy protected computer software 24 1999
RE42861 Method of distributing piracy protected computer software 0 2006
 
ALTAIR ENGINEERING, INC. (2)
7,672,972 Digital content licensing method involving application service provider 0 2001
8,073,780 Token based club digital content licensing method 0 2005
 
AUDIBLE (2)
8,175,977 License management for digital content 1 1998
7,917,643 Digital information library and delivery system 0 2004
 
CADENCE DESIGN SYSTEMS, INC. (2)
6,832,358 System and method for providing burst licensing in a circuit simulation environment 2 2002
7,299,429 System and method for providing burst licensing in a circuit simulation environment 0 2004
 
CANON KABUSHIKI KAISHA (2)
7,743,426 Information data and management data processing apparatus and method 0 2005
7,865,445 Information processing method, information processing apparatus, computer program and storage medium 2 2007
 
FUJITSU LIMITED (2)
6,385,726 Software license protection via cryptography 9 1997
7,149,705 Computer-related product user management and service system 3 1997
 
MOVIELINK, LLC (2)
7,155,415 Secure digital content licensing system and method 47 2001
7,024,466 Network configured for delivery of content for download to a recipient 14 2001
 
Optimiser Pty Ltd. (2)
7,694,345 Authorising use of a computer program 0 2001
8,365,303 Authorizing use of a computer program 0 2010
 
PRC INC. (2)
5,987,135 System and method for controlling and monitoring remote distributed processing system 49 1997
5,910,903 Method and apparatus for verifying, analyzing and optimizing a distributed simulation 25 1997
 
PRECISIONIST FUND II, LLC (2)
7,281,274 Electronic media distribution system 15 2003
7,917,965 Electronic media distribution system 0 2007
 
QUALCOMM INCORPORATED (2)
6,378,087 System and method for dynamically detecting unchecked error condition values in computer programs 18 1999
7,743,407 Using permissions to allocate device resources to an application 7 2002
 
SAFENET DATA SECURITY (ISRAEL) LTD. (2)
6,044,469 Software publisher or distributor configurable software security mechanism 80 1997
6,243,692 Secure electronic software packaging using setup-external unlocking module 94 1998
 
SONY COMPUTER ENTERTAINMENT AMERICA LLC (2)
7,664,709 Method and system for securely distributing computer software products 3 2007
8,577,808 Methods for securely distributing computer software products 0 2010
 
UNIVERSAL MUSIC GROUP, INC. (2)
7,209,892 Electronic music/media distribution system 73 1999
7,624,046 Electronic music/media distribution system 4 2005
 
ACHATES REFERENCE PUBLISHING, INC. (1)
6,173,403 Method and apparatus for distributing information products 9 1999
 
ACTIVISION PUBLISHING, INC. (1)
7,143,409 Automated entitlement verification for delivery of licensed software 11 2001
 
ALTNET, INC. (1)
8,185,576 Filter for a distributed network 1 2006
 
AMAZON TECHNOLOGIES, INC. (1)
8,571,949 Apparatus and methods for inventory, sale, and delivery of digitally transferable goods 0 2012
 
APPLE INC. (1)
6,188,995 Method and apparatus for enforcing software licenses 72 1997
 
BMC SOFTWARE, INC. (1)
7,925,635 System and method for collecting statistics related to software usage 2 2005
 
BRIGHTCOVE, INC. (1)
7,925,973 Distribution of content 9 2005
 
BUSINESS OBJECTS SOFTWARE LTD. (1)
7,877,329 Apparatus and method for processing license keys using dynamic field mapping 1 2006
 
CISCO TECHNOLOGY, INC. (1)
7,031,943 Digital license agreement 20 2000
 
DEVICEAUTHORITY, INC. (1)
8,464,059 System and method for device bound public key infrastructure 0 2008
 
EASA SOFTWARE LIMITED (1)
6,430,609 Method for accessing complex software applications through a client user interface 37 2001
 
ENTRUST, INC. (1)
7,765,580 Method and apparatus for providing user authentication using a back channel 4 2001
 
FACEBOOK, INC. (1)
7,392,420 Automated error recovery of a licensed internal code update on a storage controller 3 2003
 
GENERAL ELECTRIC CAPITAL CORPORATION (1)
7,197,466 Web-based system for managing software assets 13 2000
 
HTC CORPORATION (1)
7,120,684 Method and system for central management of a computer network 6 2002
 
INTEL CORPORATION (1)
6,901,386 Electronic asset lending library method and apparatus 35 2000
 
INVENSYS SYSTEMS, INC. (1)
7,865,442 Distributing and billing software according to customer use of program modules 1 1999
 
J. RIVER, INC. (1)
7,062,468 Licensed digital material distribution system and method 16 2001
 
KASPERSKY LAB ZAO (1)
7,530,106 System and method for security rating of computer processes 23 2008
 
LEVEL 3 COMMUNICATIONS, LLC (1)
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LOCKHEED MARTIN CORPORATION (1)
7,224,985 Antenna segment system 5 2003
 
LUCENT TECHNOLOGIES INC. (1)
6,005,943 Electronic identifiers for network terminal devices 70 1996
 
MCAFEE, INC. (1)
6,834,301 System and method for configuration, management, and monitoring of a computer network using inheritance 82 2000
 
MENTOR GRAPHICS CORPORATION (1)
6,049,789 Software pay per use licensing system 109 1998
 
Net i Trust (1)
6,145,084 Adaptive communication system enabling dissimilar devices to exchange information over a network 90 1998
 
NetAuthority (1)
8,495,359 System and method for securing an electronic communication 0 2010
 
NOKIA CORPORATION (1)
6,941,270 Apparatus, and associated method, for loading a mobile terminal with an application program installed at a peer device 35 1999
 
PRIAXESS SOFTWARE, LLC (1)
6,173,446 Apparatus for licensing software applications 52 1999
 
RICOH COMPANY, LTD. (1)
8,650,557 Information processing apparatus and method for transferring license 0 2011
 
SAFENET CANADA, INC. (1)
7,035,918 License management system and method with multiple license servers 39 2000
 
SAMSUNG ELECTRONICS CO., LTD. (1)
8,474,005 Method of executing virtualized application able to run in virtualized environment 0 2009
 
SATYAM COMPUTER SERVICES LIMITED OF MAYFAIR CENTRE (1)
7,831,457 System and method for maximizing software package license utilization 4 2003
 
SFNT GERMANY GMBH (1)
7,730,529 Method of operating a computer system and computer system 0 2003
 
Starnet Communications Corporation (1)
6,460,140 System for controlling the use of licensed software 33 1999
 
SYMANTEC OPERATING CORPORATION (1)
7,567,984 Operating system and application deployment based on stored user state and organizational policy 4 2006
 
VENICE TECHNOLOGIES INC. (1)
6,304,972 Secure software system and related techniques 17 2000
 
Wasy GmbH (1)
6,101,606 System for securing protected software from unauthorized use in computer networks 36 1997
 
Other [Check patent profile for assignment information] (3)
6,343,280 Distributed execution software license server 133 1998
8,700,535 Issuing a publisher use license off-line in a digital rights management (DRM) system 0 2008
8,103,553 Method for making money on internet news sites and blogs 1 2009