Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H1357 | Active sound cancellation system for time-varying signals | Henry A. Leinhos | 1994-09-06 |
| H1317 | Ring damper for structureborne noise suppression in piping systems | — | 1994-06-07 |
| 5150414 | Method and apparatus for signal prediction in a time-varying signal system | — | 1992-09-22 |
| 5074324 | Method and apparatus for reducing drag and noise associated with fluid flow in a conduit | — | 1991-12-24 |
| D313756 | Piano clock | — | 1991-01-15 |
| 4982375 | Acoustic intensity probe | — | 1991-01-01 |
| D309437 | Combined clock and flashlight | — | 1990-07-24 |
| D300826 | Telephone set | — | 1989-04-25 |
| D300318 | Telephone handset and stand | — | 1989-03-21 |
| 4384592 | Low-noise valve trim | — | 1983-05-24 |