Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11352838 | Low friction and high wear resistant sucker rod string | Fritz C. Grensing, Diane M. Nielsen, William D. Nielsen, Richard E. Cash | 2022-06-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11352838 | Low friction and high wear resistant sucker rod string | Fritz C. Grensing, Diane M. Nielsen, William D. Nielsen, Richard E. Cash | 2022-06-07 |