Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342015 | Electromechanical band pass filters | — | 1982-07-27 |
| 4327341 | Electromechanical filter cells | — | 1982-04-27 |
| 4255727 | Electromechanical filters | Etienne Langlois | 1981-03-10 |
| 4197516 | Bridged electromechanical filters | Etienne Langolis | 1980-04-08 |