Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11228844 | Push-pull electret transducer with controlled restoring force for low frequency microphones and energy harvesting | James E. West, Kailang Ren, Adebayo Eisape, Ugur Erturun | 2022-01-18 |
| 6489033 | Electrets | Wilfried Hatke, Guo-Mao Yang | 2002-12-03 |
| 5093570 | Discriminating electret radioactivity detector system and method for measuring radon concentration | Kurt Dorfi, James E. West | 1992-03-03 |
| 4558249 | Stretched piezopolymer transducer with unsupported areas | Reinhard Lerch | 1985-12-10 |