Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231886 | Non-metallic gear shaker | Timothy E. Drake, John E. Zarycki | 1993-08-03 |
| D323514 | Shaker | Timothy E. Drake | 1992-01-28 |
| 4942776 | Non-metallic gear shaker | Timothy E. Drake, John E. Zarycki | 1990-07-24 |
| 4911678 | Labyrinth seal coupling | Edward E. Allen | 1990-03-27 |
| 4870870 | Shaker | Timothy E. Drake | 1989-10-03 |