Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676617 | Camera system and power supply | Donald E. Koopman, David B. McQuain | 1987-06-30 |
| 4501503 | Thermographic cholesteric coating compositions and plates | Donald E. Koopman, David B. McQuain, William Reeves | 1985-02-26 |
| 4441508 | Thermographic cholesteric coating compositions and plates | Donald E. Koopman, David B. McQuain, William Reeves | 1984-04-10 |
| 4433637 | Microencapsulated cholesteric liquid crystal temperature measuring device for determining the temperature of non-planar or planar surfaces | Donald E. Koopman, David B. McQuain, William Reeves | 1984-02-28 |
| 4301054 | Thermographic cholesteric coating compositions | Donald E. Koopman, David B. McQuain, William Reeves | 1981-11-17 |