Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021931 | Sand fallback submersible pump protection apparatus | Michael Edwin Pollard | 2021-06-01 |
| 9045979 | Downhole gas separator and method | Delwin E. Cobb | 2015-06-02 |
| 5887925 | Combined washover and retrieval device | Thomas C. Burroughs | 1999-03-30 |
| 5810081 | Wear structure for bore hole separation device | Delwin E. Cobb | 1998-09-22 |
| 5810410 | Combined washover and retrieval device | Thomas C. Burroughs | 1998-09-22 |
| 5211244 | Apparatus and method for containing fluids around a wellhead | — | 1993-05-18 |
| 4924940 | Downhole cleanout tool | Thomas C. Burroughs | 1990-05-15 |