Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226494 | Subsurface well apparatus | Richard P. Rubbo | 1993-07-13 |
| 4949793 | Method and apparatus for completion of a well | Richard P. Rubbo, F. T. Tilton, A. A. Mullins, Forrest W. Howard, Scott E. Carpenter +1 more | 1990-08-21 |