Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951988 | Casing hanger packoff retrieving tool | — | 1990-08-28 |
| 4949787 | Casing hanger seal locking mechanism | Norman Brammer | 1990-08-21 |
| 4928769 | Casing hanger running tool using string weight | Lionel J. Milberger, Bruce J. Watkins | 1990-05-29 |
| 4909546 | Tension lock multibowl wellhead | — | 1990-03-20 |
| 4903776 | Casing hanger running tool using string tension | Bradley D. Beitler, Fergus D. S. McGhie | 1990-02-27 |
| 4900066 | Pipe connector | Norman Brammer | 1990-02-13 |
| 4865364 | Conical thread form | — | 1989-09-12 |
| 4842307 | Wellhead load supporting system | Thomas F. Sweeney, Charles E. Jennings | 1989-06-27 |
| 4842061 | Casing hanger packoff with C-shaped metal seal | — | 1989-06-27 |
| 4793754 | Process for locking two screwed elements and elements for carrying out this process | — | 1988-12-27 |
| 4717183 | Conical thread configuration for rapid make-up connection | — | 1988-01-05 |
| 4343495 | Conductor tieback connector | Darrell L. Jones | 1982-08-10 |
| 4302652 | Method of welding the ends of submerged pipes by sleeve abutment | Rene M. Dermy, Guy J. Fleury | 1981-11-24 |
| 4251167 | Method of welding together submerged pipe ends by means of a telescopic connection sleeve | Rene M. Dermy, Guy J. Fleury | 1981-02-17 |
| 4228857 | Floating platform well production apparatus | — | 1980-10-21 |