Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10081110 | Self-aligning pipe gripping assembly and method of making and using the same | Preston R. Fox, Neil Edward West | 2018-09-25 |
| 9452535 | Self-aligning pipe gripping assembly and method of making and using the same | Preston R. Fox, Neil Edward West | 2016-09-27 |
| 9249902 | Sealing system | Richard Poundstone Munroe, Arthur William Braman, JR. | 2016-02-02 |
| 8752653 | Dual ball upper internal blow out preventer valve | Padmasiri Daya Seneviratne, Arthur William Braman, JR., Preston R. Fox | 2014-06-17 |
| 8590762 | Staple cartridge cavity configurations | Christopher J. Hess, William B. Weisenburgh, II | 2013-11-26 |
| 8448320 | Clamp apparatus for threadedly connected tubulars | Ronald W. Yater, Neil Edward West, Cliff Swiontek, Howard Ervin | 2013-05-28 |
| 7784834 | Clamp apparatus for threadedly connected tubulars | Ronald W. Yater, Neil Edward West, Cliff Swiontek, Howard Ervin | 2010-08-31 |
| 7784565 | Top drive systems with main shaft deflecting sensing | Robert Brian Luher | 2010-08-31 |
| 7784535 | Top drive systems with reverse bend bails | Brett Gregory Wallihan | 2010-08-31 |
| 7748473 | Top drives with shaft multi-seal | Preston R. Fox, Cliff Swiontek, Svein Stubstad, Howard Ervin, James D. Brugman +1 more | 2010-07-06 |
| 7748445 | Top drive with shaft seal isolation | Preston R. Fox, Darrin L. Yenzer | 2010-07-06 |
| 7735565 | Dual-saddle ear support apparatus | James E. Lynch, Neil Edward West, Guy L. McClung, III | 2010-06-15 |
| 7665530 | Tubular grippers and top drive systems | Neil Edward West | 2010-02-23 |
| 7401664 | Top drive systems | Preston R. Fox, Cliff Swiontek, Svein Stubstad | 2008-07-22 |
| D572119 | Support bail | Brett Gregory Wallihan | 2008-07-01 |
| 7287544 | Triple valve blow out preventer | Padmasiri Daya Seneviratne, David Mason | 2007-10-30 |
| 7121295 | Internal blow out preventer ball and seat | Padmasiri Daya Seneviratne, David Mason | 2006-10-17 |
| 4478111 | Suspension of adjustable pipe spinner | Boris A. Kamenster, Preston R. Fox, Jerry A. Gill | 1984-10-23 |
| 4425827 | Suspension of pipe spinner | — | 1984-01-17 |