Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5456314 | Wellhead annulus seal | Carl F. Boehm, Jr., David L. Ford | 1995-10-10 |
| 5360063 | Wear bushing with locking collet | — | 1994-11-01 |
| 5350017 | Elastomeric seal with reinforcing ring | — | 1994-09-27 |
| 5226478 | Cement port closure sleeve for a subsea well | Philippe C. Nobileau | 1993-07-13 |
| 5199495 | Split wear bushing for a drilling rig | Norman Brammer, Richard W. Slyker | 1993-04-06 |
| 5029647 | Subsea wellhead stabilization | Lionel J. Milberger, Stanley Hosie | 1991-07-09 |
| 4978147 | Elastomeric lockdown and shearout device | Mark Q. Henneke | 1990-12-18 |
| 4919460 | Wellhead casing hanger support mechanism | Lionel J. Milberger | 1990-04-24 |
| 4807705 | Casing hanger with landing shoulder seal insert | Joseph H. Hynes | 1989-02-28 |
| 4591296 | Temporary guide base retrieval method and apparatus | Richard Coombs | 1986-05-27 |
| 4540053 | Breech block hanger support well completion method | Benton Frederick Baugh, John H. Fowler | 1985-09-10 |
| 4488740 | Breech block hanger support | Benton Frederick Baugh, John H. Fowler, Arthur G. Ahlstone | 1984-12-18 |
| 4453566 | Hydraulic subsea control system with disconnect | Joseph L. LeMoine, Jerry B. Tomlin | 1984-06-12 |