Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882579 | Code division multiplexed acknowledge back paging system | — | 1989-11-21 |
| 4875038 | Frequency division multiplexed acknowledge back paging system | Leon Jasinski, Francis R. Steel | 1989-10-17 |
| 4847626 | Microstrip balun-antenna | Mark P. Kahler | 1989-07-11 |
| 4825193 | Acknowledge back pager with adaptive variable transmitter output power | Leon Jasinski, Francis R. Steel | 1989-04-25 |
| 4823123 | Knowledge back pager with frequency control apparatus | — | 1989-04-18 |