Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6615915 | High pressure side-by-side wellhead system | — | 2003-09-09 |
| 6510895 | Energized sealing cartridge for annulus sealing between tubular well components | David Cain, Qiu Zheng, Michael H. Hunt | 2003-01-28 |