Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623993 | Method and apparatus for sealing and transfering force in a wellbore | Richard G. Van Buskirk, Michael J. Loughlin, Albert Augustus Mullins, Michael H. Johnson | 1997-04-29 |