Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873469 | Infrared actuated control switch assembly | Wai-Shing Peter Ko, Curtis R. Davidson, Thomas Whitehurst | 1989-10-10 |
| 4823051 | Infrared actuated control switch assembly | — | 1989-04-18 |