Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887846 | Subsea tubular joint | Arthur H. T. Chin | 1989-12-19 |
| 4869319 | Wellhead structure | Edward J. Szymozak, Thomas G. Cassity, Peer H. Tiemer, Larry M. Hoes, Jerry D. Smith +1 more | 1989-09-26 |
| 4862426 | Method and apparatus for operating equipment in a remote location | Thomas G. Cassity, William C. Montgomery, Gerald S. Baker, Alfred W. Wedel | 1989-08-29 |
| 4832125 | Wellhead hanger and seal | — | 1989-05-23 |
| 4826216 | Well housing and landing shoulder | Joseph H. Hynes, James H. Owens, III | 1989-05-02 |
| 4817716 | Pipe connector and method of applying same | Thomas G. Cassity | 1989-04-04 |