Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5299842 | Fluid line clamp | Ernest E. Marks, Willard L. Hofer | 1994-04-05 |
| 5222768 | Fluid line nut locking device | Willard L. Hofer, Ernest E. Marks | 1993-06-29 |
| 5217369 | Atmospheric furnace door counterbalance | Dix Brown, Willard L. Hofer | 1993-06-08 |