Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11345005 | Split nut valve seat puller | William Stephen Colburn, Ricardo Jose Betancourt | 2022-05-31 |
| 11300206 | Packing assembly for a pump | John A. Miller | 2022-04-12 |
| 10428949 | Packing assembly for a pump | John A. Miller | 2019-10-01 |
| 9534691 | Packing assembly for a pump | John A. Miller | 2017-01-03 |
| 5829338 | Pump having unidirectional tapered land thrust bearing cluster | Brian M. Chrestoff | 1998-11-03 |
| 5784948 | Positive displacement pump having levitating magnetic piston spring circuit | Brian M. Chrestoff | 1998-07-28 |
| 5678471 | Swashplate pump incorporating a dual location cluster bearing | Brian M. Chrestoff | 1997-10-21 |
| 5676035 | Cam follower retainer for a swashplate pump | Brian M. Chrestoff | 1997-10-14 |
| 5383694 | Load segment assembly with wire rope | Ralph Taeuber, Jr., Sergio Castillo | 1995-01-24 |