Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11920411 | Tool coupler with sliding coupling members for top drive | Michael Kratzert, Thomas Nicolas Emmanuel Veit, Kevin Wood | 2024-03-05 |
| 6923252 | Borehole sounding device with sealed depth and water level sensors | Joseph C. Skalski | 2005-08-02 |
| 4704871 | Magnetic refrigeration apparatus with belt of ferro or paramagnetic material | John A. Barclay, Walter F. Stewart, Kenneth E. Kalash | 1987-11-10 |