Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5918673 | Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing | Samuel P. Hawkins, III, David L. Sipos, Keith T. Lutgring, Burney J. Latiolais, Jr. | 1999-07-06 |
| 5909768 | Apparatus and method for improved tubular grip assurance | Dale J. Castille, Michael Webre | 1999-06-08 |
| 5848647 | Pipe gripping apparatus | Mike Webre, Vernon Bouligny | 1998-12-15 |
| 5819805 | Casing thread protector | Charles Sodha | 1998-10-13 |
| 5810401 | Threaded tool joint with dual mating shoulders | David L. Sipos | 1998-09-22 |
| 5791410 | Apparatus and method for improved tubular grip assurance | Dale J. Castille, Michael Webre | 1998-08-11 |
| 5524672 | Casing thread protector | Charles Sodha | 1996-06-11 |
| 4676312 | Well casing grip assurance system | Charles Michael Webre | 1987-06-30 |
| 4429719 | Pipe thread protector | — | 1984-02-07 |
| 4372026 | Method and apparatus for connecting and disconnecting tubular members | — | 1983-02-08 |