Echelon Corporation
127Patents
43Active
127Granted
50Portfolio score
Filing activity: Jun 4, 1990 → Nov 5, 2019 · 9 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6580950B1 | Internet based home communications system | Physics | 601 | Expired |
| US5519878A | System for installing and configuring (grouping and node address assignment) household devices in an automated environment | Electricity | 471 | Expired |
| US7187986B2 | Internet based home communications system | Physics | 286 | Expired |
| US5289476A | Transmission mode detection in a modulated communication system | Electricity | 248 | Expired |
| US5491402A | Apparatus and method for providing AC isolation while supplying DC power | Electricity | 206 | Expired |
| US5355114A | Reconstruction of signals using redundant channels | Electricity | 187 | Expired |
| US5257006A | Method and apparatus for power line communications | Electricity | 181 | Expired |
| US5404127A | Power line communication while avoiding determinable interference harmonics | Electricity | 175 | Expired |
| US5239686A | Transceiver with rapid mode switching capability | Electricity | 166 | Expired |
| US5113498A | Input/output section for an intelligent cell which provides sensing, bidirectional communications and control | Emerging Cross-Sectional Technologies | 160 | Expired |
| US5844888A | Network and intelligent cell for providing sensing, bidirectional communications and control | Emerging Cross-Sectional Technologies | 159 | Expired |
| US5420572A | Configuration device for use in a networked communication system | Electricity | 135 | Expired |
| US5737529A | Networked variables | Electricity | 130 | Expired |
| US5203003A | Computer architecture for conserving power by using shared resources and method for suspending processor execution in pipeline | Physics | 119 | Expired |
| US5192231A | Power line communications coupler | Electricity | 111 | Expired |
| US5249270A | Development system protocol | Physics | 101 | Expired |
| US5475687A | Network and intelligent cell for providing sensing, bidirectional communications and control | Emerging Cross-Sectional Technologies | 95 | Expired |
| US5327426A | Method and apparatus for preventing unnecessary retransmission of messages in a networked messaging system | Electricity | 90 | Expired |
| US5391932A | Source power coupler | Emerging Cross-Sectional Technologies | 80 | Expired |
| US5490276A | Programming language structures for use in a network for communicating, sensing and controlling information | Electricity | 79 | Expired |
| US5856972A | Duplicate message detection method and apparatus | Electricity | 78 | Expired |
| US5485040A | Powerline coupling network | Electricity | 75 | Expired |
| US7103016B1 | System and method for providing transaction control on a data network | Electricity | 71 | Expired |
| US5461629A | Error correction in a spread spectrum transceiver | Electricity | 68 | Expired |
| US5260974A | Adaptive carrier detection | Electricity | 64 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.