Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691710 | Self learning IR remote control transmitter | Michael Pietraszak | 1997-11-25 |
| 5684471 | IR remote control transmitter with power saving feature | Mark Bernardi | 1997-11-04 |
| 5644337 | Trackball having single emitter-detector detecting chopper wheel direction | — | 1997-07-01 |
| 5638061 | Track ball mechanism and switch arrangement | Rod J. Levin | 1997-06-10 |