Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10508522 | Automatic sucker rod spacing device and methods of using same | Michael Eric Johnson, Donald Ewing, Joe Boyd, Danny Uselton | 2019-12-17 |
| 10195699 | Sucker rod | Michael Eric Johnson, Aleksei Averyanov, Viktor Smerdin | 2019-02-05 |