Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5757266 | Electronic apparatus for providing player performance feedback | Alan J. Rider, Stephen Landsman | 1998-05-26 |
| 5541516 | Locator equipment with self-integrity test capability | Alan J. Rider | 1996-07-30 |
| 5361029 | System for locating multiple concealed underground objects | Alan J. Rider | 1994-11-01 |
| 5231355 | Locator transmitter having an automatically tuned antenna | Alan J. Rider | 1993-07-27 |
| 4941172 | Preprogrammed autodialer and related process | Jacob J. Winebaum, Alan J. Rider | 1990-07-10 |
| 4206420 | Phase locked loop with automatic sweep | Ajay Parikh | 1980-06-03 |