Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012520 | Hearing aid with wireless remote control | — | 1991-04-30 |
| 4599536 | Single-ended low-pressure discharge lamp, such as fluorescent lamp, and method of its manufacture | Josef Plischke | 1986-07-08 |
| 4508940 | Device for the compensation of hearing impairments | — | 1985-04-02 |
| 4441050 | Single-ended low pressure discharge lamp and method of manufacture | Josef Plischke | 1984-04-03 |