Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316084 | Well tool with sealing means | Douglas J. Murray, Mark E. Hopmann, Ronald D. Williams, Steve Jennings, Timothy R. Tips | 1994-05-31 |
| 5309993 | Chevron seal for a well tool | Steve Jennings, Mark E. Hopmann | 1994-05-10 |