Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11536126 | Downhole gas-liquid separator | — | 2022-12-27 |
| 9045979 | Downhole gas separator and method | Roy S. Arterbury | 2015-06-02 |
| 8051907 | Downhole separator | — | 2011-11-08 |
| 7909092 | Downhole separator | — | 2011-03-22 |
| 7673684 | ESP/separator assembly and method | — | 2010-03-09 |
| 7314095 | Gardening tool | — | 2008-01-01 |
| 6382317 | Apparatus and method for separating gas and solids from well fluids | — | 2002-05-07 |
| D438905 | Combined wire stand and card | Myra C. Cobb | 2001-03-13 |
| D437000 | Card hanger | Myra C. Cobb | 2001-01-30 |
| 5810081 | Wear structure for bore hole separation device | Roy S. Arterbury | 1998-09-22 |
| RE35454 | Apparatus and method for separating solid particles from liquids | — | 1997-02-18 |
| 5314018 | Apparatus and method for separating solid particles from liquids | — | 1994-05-24 |
| 4820382 | Method and apparatus for removing solids from an upwardly moving bed chamber | — | 1989-04-11 |
| 4746222 | Mixing and cooling apparatus for hot, particulate matter | Chien-Cheng J. Shih, Charles Griswold | 1988-05-24 |
| 4703838 | Recoil damper for a reciprocating member | Michael A. Roussin | 1987-11-03 |
| RE31164 | Cooling system for rock ripper tip | Nathan Gutman, Richard E. Livesay | 1983-03-01 |
| 4355964 | Gear pump having fluid deaeration capability | Scott A. Rodibaugh | 1982-10-26 |
| RE30769 | Mounting arrangement for impact rock-breaker | Jerry D. Fidler, Nathan Gutman, Richard E. Livesay, Gerald P. Simmons, Orrin A. Stemler | 1981-10-13 |
| 4278295 | Impacting rock breaker | — | 1981-07-14 |
| 4231726 | Gear pump having fluid deaeration capability | Maurice E. Young | 1980-11-04 |
| 4229044 | Clevis-mounted impact ripper | Richard E. Livesay | 1980-10-21 |
| 4184808 | Fluid driven pump | — | 1980-01-22 |