Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10138689 | Tool and method for use in supporting a sucker rod string in an oil or gas well | Leslie Joan Kohnen, Dennis Francis Ranks, Jeffery Errol Dickie, William G. Groves | 2018-11-27 |