Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6286538 | Check valve | James M. Kubik | 2001-09-11 |
| 5261458 | Pilot relay valve with load piston | Duane R. Johnson, Robert J. Herbst, James G. Pugh, Paul O. Szentkiralyi | 1993-11-16 |