Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599107 | Piston pump having housing with a pump housing and a pump assembly drive housing formed therein | Robert D. Cooper | 2003-07-29 |
| 6435846 | Piston pump having housing with a pump housing and a pump assembly drive housing formed therein | Robert D. Cooper | 2002-08-20 |
| 6419456 | Switch for controlling the motor of a piston pump | Robert D. Cooper | 2002-07-16 |