Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5381822 | Relief valve with hydraulic fuse | — | 1995-01-17 |
| 5309936 | Poppet configuration for counterbalance valve | — | 1994-05-10 |
| 4588163 | Valve stem travel limiting apparatus | — | 1986-05-13 |
| 4365429 | Maximum lift system for hydraulic hoe | Frank A. Ecker, Theodore G. Jensen | 1982-12-28 |