Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8931151 | Fence stay drill bit | — | 2015-01-13 |
| 6132694 | Catalyst for oxidation of volatile organic compounds | Billy T. Upchurch, David R. Schryer, Patricia P. Davis, Erik J. Kielin, Kenneth G. Brown +2 more | 2000-10-17 |
| 5948965 | Solid state carbon monoxide sensor | Billy T. Upchurch, David R. Schryer, Bradley D. Leighty, Donald M. Oglesby, Erik J. Kielin +2 more | 1999-09-07 |
| 4839330 | Isotope exchange in oxide-containing catalyst | Robert V. Hess, Billy T. Upchurch, Kenneth G. Brown, Irvin M. Miller, David R. Schryer +2 more | 1989-06-13 |
| 4829035 | Reactivation of a tin oxide-containing catalyst | Billy T. Upchurch, Irvin M. Miller, Kenneth G. Brown, Robert V. Hess, David R. Schryer +2 more | 1989-05-09 |
| 4414509 | Low energy electron magnetometer using a monoenergetic electron beam | Jag J. Singh, Grayson H. Rayborn, Frederick A. White, JR. | 1983-11-08 |