Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588030 | Well tool having a metal seal and bi-directional lock | — | 1986-05-13 |
| 4585067 | Method and apparatus for stopping well production | James K. Garner, Jr., John D. Anderson | 1986-04-29 |