Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789311 | Method of manufacturing a lacquer coated wire | Hugo Lenhard-Backhaus | 2004-09-14 |
| 5033086 | Stereophonic binaural recording or reproduction method | — | 1991-07-16 |
| 4955578 | Resiliently fastened support device for a microphone | — | 1990-09-11 |
| 4858719 | Pressure gradient pickup | Heinz Renner | 1989-08-22 |
| 4817168 | Directional microphone | — | 1989-03-28 |
| 4718415 | Breathing mask having a transducer movable parts coupled to a speaking diaphragm for speech transmission | Reinhard Bolnberger | 1988-01-12 |
| 4572324 | Ear piece construction | Friedrich Richter | 1986-02-25 |
| 4512009 | Stylus for stereo pickups | Gunter Nawrata | 1985-04-16 |
| 4508192 | Microphone diaphragm | Richard Pribyl, Konrad Wolf | 1985-04-02 |
| 4501462 | Coupling member for a capacitive microphone | — | 1985-02-26 |
| 4453046 | Elastic support for electroacoustic transducers | Konrad Wolf | 1984-06-05 |
| 4447678 | Electracoustic transducer | — | 1984-05-08 |
| 4367544 | Electromagnetic transducers for converting mechanically acoustic events into alternating voltages | Richard Pribyl | 1983-01-04 |