Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230363 | Suction valve for high pressure slurry pump | Fred M. Winn, Jr., Larry J. Leising | 1993-07-27 |
| 4797003 | Foamed slurry generator | Mat Hoover | 1989-01-10 |
| 4775008 | Adjustable cement head manifold | — | 1988-10-04 |
| 4687421 | Frangible pressure relief disc assembly and positive displacement pumps containing the disc assembly | Paul M. Shireman | 1987-08-18 |
| 4659116 | Pipe union for cryogenic fluids | — | 1987-04-21 |
| 4659115 | Reducer coupling and positioner tool for the coupling | — | 1987-04-21 |
| 4573712 | Reducer coupling and positioner tool for the coupling | — | 1986-03-04 |
| 4572519 | Packing assembly for use in a plunger bore | Homer V. Cobb, Fred M. Winn, Jr. | 1986-02-25 |
| 4367651 | Pressure transducer body | Donnie L. Stufflebeam, John W. Ekey | 1983-01-11 |