Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11506505 | Methods and apparatus for determining a vehicle path | Brian Pheiffer | 2022-11-22 |
| 10901065 | Location determination of an emitter using frequency-of-arrival (FOA) measured from a single moving platform | Brian Pheiffer, David O. Edewaard, Daniel Stewart Summers | 2021-01-26 |
| 5315988 | Reactive, closed-circuit underwater breathing apparatus | John R. Clarke, Donald D. Joye, Peter Wechgelaer | 1994-05-31 |
| 5299567 | Minimal elastance, closed-circuit underwater breathing apparatus | Donald D. Joye | 1994-04-05 |