Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995539 | Clutch mechanism between leadscrew and electric motor | Peter Heidrich | 2021-05-04 |
| 10683692 | Clutch mechanism between leadscrew and electric motor | Peter Heidrich | 2020-06-16 |
| 8484892 | Electric door operator | — | 2013-07-16 |
| 5295412 | Park locking mechanism | John M. Donato, Robert McKee | 1994-03-22 |
| 4512534 | Cassette reel lock | Don R. Coy, Jr. | 1985-04-23 |
| 4466583 | Cassette door latch | Don R. Coy, Jr. | 1984-08-21 |