Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686920 | Transponder maintenance mode method | Francis B. Frazee | 1997-11-11 |
| 5621412 | Multi-stage transponder wake-up, method and structure | Claude A. Sharpe, Mark Allen Hamlett | 1997-04-15 |
| 5602919 | Speedup for monetary transactions using a transponder in conjunction with a smartcard | Anne Tip, Peter Wolfart | 1997-02-11 |