Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864119 | Bulk avalanche semiconductor switch using a mesa structure | Larry Ragle, Richard A. Williams | 1989-09-05 |
| 4828259 | Tennis racquet with double throat bridge | — | 1989-05-09 |