Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5228076 | High fidelity speech encoding for telecommunications systems | Emil Hopner | 1993-07-13 |
| 4295217 | Apparatus to reduce the effect of a mid-talkspurt freeze-out | John W. Fennel, Jr., Robert J. Hallett, Constantine M. Melas | 1981-10-13 |