Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5829338 | Pump having unidirectional tapered land thrust bearing cluster | Robert H. Ash, Jr. | 1998-11-03 | $2,041,000 |
| 5784948 | Positive displacement pump having levitating magnetic piston spring circuit | Robert H. Ash, Jr. | 1998-07-28 | $3,534,000 |
| 5678471 | Swashplate pump incorporating a dual location cluster bearing | Robert H. Ash, Jr. | 1997-10-21 | $5,647,000 |
| 5676035 | Cam follower retainer for a swashplate pump | Robert H. Ash, Jr. | 1997-10-14 | $3,960,000 |