Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022837 | Seal arrangement for a gear machine | David E. King | 1991-06-11 |
| 4964433 | Rotary valve | — | 1990-10-23 |
| 4638886 | Apparatus for disabling an obstructed lift mechanism | — | 1987-01-27 |
| 4332531 | Variable displacement pump with torque limiting control | — | 1982-06-01 |