Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5982411 | Navigation among grouped television channels | Mark Eyer | 1999-11-09 |
| 4754426 | System for controlling communications on a cable television network | David Wreford-Howard | 1988-06-28 |
| 4724478 | Cable television communication system with passive sensor signal path and a subscriber power supply source | Akinori Masuko, Akio Ogawa, Yasuhiro Muramatsu, Hideki Hirosawa, W. Sherwood Campbell | 1988-02-02 |
| 4710956 | Cable television system | — | 1987-12-01 |
| 4686564 | Communication data processing device of cable television system | Akinori Masuko, Wataru Kuroiwa, Shouji Uehara, Tsutomu Uekusa, W. Sherwood Campbell | 1987-08-11 |
| 4684980 | System for controlling communications on a cable television network | David Wreford-Howard | 1987-08-04 |
| 4218657 | Hangup corrector useful in locked loop tuning system | — | 1980-08-19 |