Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796288 | Telephone handset with static discharge prevention | Josef Talacek, Ronald Wellard | 1989-01-03 |
| 4773091 | Telephone handset for use in noisy locations | Beverley W. Gumb | 1988-09-20 |
| 4594478 | Transmitter assembly for a telephone handset | Beverley W. Gumb, Raymond C. Freeman | 1986-06-10 |
| 4529846 | Dynamic telephone receiver with magnetic shunt | Raymond C. Freeman, Beverley W. Gumb | 1985-07-16 |
| 4385209 | Adjustment of operating characteristics of a telephone transmitter including an electret transducer | William D. Greason, Beverley W. Gumb, Eric Foster | 1983-05-24 |
| 4350846 | Acoustic mounting and coupler for a telephone handset | Karlo B. Simonsen | 1982-09-21 |