Microcom Systems, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 6204
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 6279
 
  
 
H04J MULTIPLEX COMMUNICATION 4121
 
  
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 154
 
  
 
H04M TELEPHONIC COMMUNICATION 1162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6122287 Method and apparatus for detecting switched network protocolsFeb 09, 96Sep 19, 00[H04J]
6067318 High performance communications interfaceMay 30, 97May 23, 00[H04B]
5826198 Transmission of data over a radio frequency channelJul 07, 97Oct 20, 98[H04M, H04B]
5729573 High performance communications interfaceJun 05, 95Mar 17, 98[H04B]
5644593 High performance communications interfaceSep 02, 94Jul 01, 97[H04B]
5577033 Local area network transmission emulatorJun 03, 94Nov 19, 96[H04L]
5539745 Method and apparatus for reducing the transmission of repetitive broadcast datagrams over communication linksJun 07, 94Jul 23, 96[H04L]
5481562 Multi-mode modem and data transmission methodApr 01, 91Jan 02, 96[H04L, H04B]
5323388 Local area network transmission emulatorJul 27, 93Jun 21, 94[H04L]
5321694 Method and apparatus for reducing the transmission of repetitive braodcast datagrams over communication linksFeb 09, 93Jun 14, 94[H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6564071 Transmission of data over a radio frequency channelExpiredJun 26, 98May 13, 03[H04M, H04B]
6285680 Central site call routing apparatus and methodExpiredMar 27, 97Sep 04, 01[H04M, H04L]
5136580 Apparatus and method for learning and filtering destination and source addresses in a local area network systemExpiredMay 16, 90Aug 04, 92[H04J]
5134611 Analog/digital data device and methodExpiredSep 30, 88Jul 28, 92[H04M, H04J]
5027376 Data telecommunications system and method for transmitting compressed dataExpiredMay 31, 88Jun 25, 91[H04B]
4748638 Data telecommunications system and method for transmitting compressed dataExpiredOct 30, 85May 31, 88[H04L, H04B]
4691314 Method and apparatus for transmitting data in adjustable-sized packetsExpiredOct 30, 85Sep 01, 87[H04J]
4680773 Data telecommunications system and method utilizing a multi-mode modemExpiredOct 30, 85Jul 14, 87[H04B]
4680781 Data telecommunications system and method with universal link establishmentExpiredOct 30, 85Jul 14, 87[H04L]

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