Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11725463 | Coupling for rods | Diane M. Nielsen, Fritz C. Grensing | 2023-08-15 |
| 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 |
| 11174688 | Sucker rod guides | Fritz C. Grensing, Christopher W. Damschroder, Michael J. Gedeon, Diane M. Nielsen | 2021-11-16 |
| 11008645 | Wear-resistant Cu—Ni—Sn coating | Fritz C. Grensing, Robert E. Kusner, David J. Krus, Karl R. Ziegler | 2021-05-18 |
| 11008818 | Coupling for rods | Diane M. Nielsen, Fritz C. Grensing | 2021-05-18 |
| 10844671 | Low friction and high wear resistant sucker rod string | Fritz C. Grensing, Diane M. Nielsen, Richard E. Cash, Christopher W. Damschroder | 2020-11-24 |
| 10844670 | Couplings for well pumping components | Diane M. Nielsen | 2020-11-24 |
| 10626489 | Wear-resistant Cu—Ni—Sn coating | Fritz C. Grensing, Robert E. Kusner, David J. Krus, Karl R. Ziegler | 2020-04-21 |
| 10597949 | Drilling component | Diane M. Nielsen, Christopher W. Damschroder, Fritz C. Grensing | 2020-03-24 |
| 10435955 | Coupling for rods | Diane M. Nielsen, Fritz C. Grensing | 2019-10-08 |
| 10049785 | Wire for deep water transmission | Diane M. Nielsen, Walter G. Maxwell | 2018-08-14 |
| 9938608 | Composite articles comprising spinodal copper-nickel-tin-manganese-phosphorus alloy matrix material | — | 2018-04-10 |
| 9721696 | Wire for deep water transmission | Diane M. Nielsen, Walter G. Maxwell | 2017-08-01 |
| 7056395 | Dies for die casting aluminum and other metals | Amitava Guha | 2006-06-06 |
| 6716292 | Unwrought continuous cast copper-nickel-tin spinodal alloy | William D. Nielsen | 2004-04-06 |
| 6591894 | Shot blocks for use in die casting | Amitava Guha | 2003-07-15 |
| 6527512 | Mud motor | Robert Bertin, Diane Ryan | 2003-03-04 |
| 6371224 | Threaded spacer | Stephen E. Freeman, David J. Krus, Donald J. Moracz, Diane Ryan | 2002-04-16 |