Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834717 | Tubing rotator | — | 2004-12-28 |
| 6386292 | Wellbore annulus packer apparatus and method | — | 2002-05-14 |
| 6095241 | Coupling device for a drive assembly | David Wade Campbell | 2000-08-01 |
| 6042718 | Process for removing water from a water-containing crude oil | Edward E. Brauer | 2000-03-28 |
| 6026898 | Integral tubing head and rotator | David Wade Campbell | 2000-02-22 |
| 5653290 | Rotating rod string position adjusting device | — | 1997-08-05 |
| 5429188 | Tubing rotator for a well | Dennis W. Cameron | 1995-07-04 |
| 5427178 | Tubing rotator and hanger | — | 1995-06-27 |
| 4880062 | Oil well downhole liquid injection assembly | Clifford J. Anderson | 1989-11-14 |
| 4549432 | Metering separator for determining the liquid mass flow rate in a gas-liquid oilfield production stream | Clifford J. Anderson | 1985-10-29 |
| 4533366 | Evaporation dehydrator | — | 1985-08-06 |