Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6064864 | Antenna interlock for housing assembly | Sunil Lakhani, Jerrold Scott Pine | 2000-05-16 |
| 4567333 | Electronic tone ringer with distinctive signaling circuitry | David M. Embree, David C. Goldthorp, Howard H. Longenecker | 1986-01-28 |
| 4508937 | Method and circuitry for encoding telephone ringing signals | William A. Burger, David M. Embree, Martin H. Singer | 1985-04-02 |
| 4491691 | Electronic tone ringer | David M. Embree, David C. Goldthorp, Howard H. Longenecker | 1985-01-01 |
| 4292604 | Relaxation oscillator with plural constant current sources | Milton L. Embree, David C. Goldthorp | 1981-09-29 |
| 4276448 | Electronic tone ringer | Milton L. Embree, David C. Goldthorp | 1981-06-30 |