Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11115745 | Systems and methods for antenna and ground plane mounting schemes for in-ear headphone | Richard Arthur Grebe | 2021-09-07 |
| 4662501 | Coin checking | — | 1987-05-05 |
| 4574935 | Coin checking method and apparatus employing wave train comparison | — | 1986-03-11 |
| 4410178 | Gaming machines | — | 1983-10-18 |
| D266323 | Miniature lampholder | — | 1982-09-28 |