Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10715025 | Radial magnetic cycloid gear assemblies, and related systems and methods | Kent Davey, Kenneth W. Seyffert, Tim Duggan, Timothy I. Montgomery | 2020-07-14 |
| 10008912 | Magnetic drive devices, and related systems and methods | Kent Davey, David Cardellini | 2018-06-26 |
| 9593753 | Magnetic gears, and related systems and methods | Kent Davey, David Cardellini | 2017-03-14 |
| 8448320 | Clamp apparatus for threadedly connected tubulars | Ronald W. Yater, Lawrence E. Wells, Neil Edward West, Howard Ervin | 2013-05-28 |
| 7784834 | Clamp apparatus for threadedly connected tubulars | Ronald W. Yater, Lawrence E. Wells, Neil Edward West, Howard Ervin | 2010-08-31 |
| 7748473 | Top drives with shaft multi-seal | Lawrence E. Wells, Preston R. Fox, Svein Stubstad, Howard Ervin, James D. Brugman +1 more | 2010-07-06 |
| 7401664 | Top drive systems | Lawrence E. Wells, Preston R. Fox, Svein Stubstad | 2008-07-22 |