Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5535646 | Ratchet drive | Edward R. Neff | 1996-07-16 |
| 4936701 | Universal joint with rotating holder sleeve | James S. Amtmann | 1990-06-26 |
| 4640153 | Accessory drive for a turbine engine | James William Brogdon, John S. Barton, Raymond John Hicks | 1987-02-03 |
| 4542658 | Torque measuring device | James William Brogdon, John S. Barton, Raymond John Hicks | 1985-09-24 |