Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870401 | Electronic key locking circuitry | Robert D. Lee | 1989-09-26 |
| 4868525 | Temperature-stabilized oscillator | — | 1989-09-19 |
| 4855690 | Integrated circuit random number generator using sampled output of variable frequency oscillator | — | 1989-08-08 |
| 4850000 | Gated shift register | — | 1989-07-18 |
| 4810975 | Random number generator using sampled output of variable frequency oscillator | — | 1989-03-07 |