Zenith Electronics LLC
947Patents
51Active
947Granted
46Portfolio score
Filing activity: Sep 28, 1964 → Aug 30, 2018 · 39 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4856078A | DC fan speed control | Emerging Cross-Sectional Technologies | 1,197 | Expired |
| US5528304A | Picture-in-picture feedback for channel related features | Electricity | 325 | Expired |
| US4527194A | Channel assignment for CATV system | Electricity | 266 | Expired |
| US4768229A | Restrictive access control system | Electricity | 254 | Expired |
| US5600677A | Trellis coded modulation system for digital television signal | Electricity | 191 | Expired |
| US5087975A | VSB HDTV transmission system with reduced NTSC co-channel interference | Electricity | 189 | Expired |
| US4633297A | Television receiver having teletext processor with ROM for on-screen message | Electricity | 184 | Expired |
| USD356312S | Remote control unit | General | 177 | Expired |
| US5636251A | Receiver for a trellis coded digital television signal | Electricity | 175 | Expired |
| US5060114A | Conformable pad with thermally conductive additive for heat dissipation | Electricity | 175 | Expired |
| US6052158A | Using equalized data for filter selection in HDTV receiver | Electricity | 170 | Expired |
| US5459522A | Method for acquisition and display of an on-screen program guide | Electricity | 168 | Expired |
| US4644100A | Surface acoustic wave touch panel system | Physics | 159 | Expired |
| US5844552A | Communication of character data in a web television | Electricity | 158 | Expired |
| US6996133B2 | Digital communication system for transmitting and receiving robustly encoded data | Electricity | 144 | Expired |
| US4677685A | Method and apparatus for downloading a code defining the channel transmission format employed in an addressable CATV system | Electricity | 138 | Expired |
| US5583889A | Trellis coded modulation system for HDTV | Electricity | 136 | Expired |
| US5301019A | Data compression system having perceptually weighted motion vectors | Electricity | 135 | Expired |
| US6785906B1 | Polling internet module of web TV | Electricity | 133 | Expired |
| US5619269A | Frame sync signal for digital transmission system | Electricity | 130 | Expired |
| US4772876A | Remote security transmitter address programmer | Physics | 126 | Expired |
| US4717360A | Modular electrical connector | Emerging Cross-Sectional Technologies | 121 | Expired |
| US5517502A | Upstream transmission using multiple transmission tags and downstream acknowledgements in conditional access packets | Electricity | 121 | Expired |
| US4460922A | Memory select system for an STV decoder | Electricity | 120 | Expired |
| US5436676A | Remote control unit code translation | Electricity | 120 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.