Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11459832 | Couplings for well pumping components | Diane M. Nielsen | 2022-10-04 |
| 11352838 | Low friction and high wear resistant sucker rod string | Fritz C. Grensing, Diane M. Nielsen, Richard E. Cash, Christopher W. Damschroder | 2022-06-07 |