Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11352838 | Low friction and high wear resistant sucker rod string | Diane M. Nielsen, William D. Nielsen, Richard E. Cash, Christopher W. Damschroder | 2022-06-07 |
| 11326242 | Copper-nickel-tin alloys | Karl R. Ziegler, John E. Gatehouse, Bruce D. Schmeck | 2022-05-10 |