Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484804 | Pumpdown valve plug assembly for liner cementing system | Jerry P. Allamon | 2002-11-26 |
| 6471439 | Slips for drill pipes or other tubular members | Jerry P. Allamon | 2002-10-29 |
| 6401824 | Well completion convertible float shoe/collar | Jeffrey D. Musselwhite, Jeffry C. Ehlinger, Jerry P. Allamon | 2002-06-11 |
| 6370721 | Variable speed pig for pipeline applications | Carl R. Torres, Jr., Paul MANZAK | 2002-04-16 |