Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5743333 | External casing packer with element end sleeve to collar retainer and method | Darrin L. Willauer | 1998-04-28 |
| 5330007 | Template and process for drilling and completing multiple wells | Gary J. Collins, John L. Baugh | 1994-07-19 |
| 5242019 | Downhole tool with increased friction surface and method of manufacture | — | 1993-09-07 |
| 4759410 | Side pocket mandrel having forged indentations | James Holt, Max A. Threadgill | 1988-07-26 |