Echelon Systems Corporation
Patent Owner
Stats
- 7 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 30, 1996 most recent publication
Details
- 7 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 2,396 Total Citation Count
- Nov 10, 1987 Earliest Filing
- 11 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5513324 Method and apparatus using network variables in a multi-node networkMar 07, 94Apr 30, 96[G06F]
5319641 Multiaccess carrier sensing network communication protocol with priority messagesDec 03, 90Jun 07, 94[H04J]
5297143 Network communication protocol including a reliable multicasting techniqueDec 03, 90Mar 22, 94[H04J]
5206935 Apparatus and method for fast I/O data transfer in an intelligent cellMar 26, 91Apr 27, 93[G06F]
5148144 Data communication network providing power and message informationMar 28, 91Sep 15, 92[H04M]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5029180 Transceiver providing selectable frequencies and spreading sequencesExpiredAug 13, 90Jul 02, 91[H04K]
5018138 Protocol for network having a plurality of intelligent cellsExpiredNov 08, 88May 21, 91[H04J]
4979183 Transceiver employing direct sequence spread spectrum techniquesExpiredMar 23, 89Dec 18, 90[H04K]
4969146 Protocol for network having a plurality of intelligent cellsExpiredNov 08, 88Nov 06, 90[H04J]
4969147 Network and intelligent cell for providing sensing, bidirectional communications and controlExpiredNov 25, 88Nov 06, 90[H04J]
4947484 Protocol for network having a plurality of intelligent cellsExpiredNov 08, 88Aug 07, 90[G06F]
4941143 Protocol for network having a plurality of intelligent cellsExpiredNov 08, 88Jul 10, 90[H04J]
4939728 Network and intelligent cell for providing sensing bidirectional communications and controlExpiredDec 19, 88Jul 03, 90[H04J]
4918690 Network and intelligent cell for providing sensing, bidirectional communications and controlExpiredNov 10, 87Apr 17, 90[H04J]
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