Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8632111 | Apparatus and method for facilitating handling pipe | Anton Krijnen, Neils DeKeijzer, Rene Mulder | 2014-01-21 |
| 7429195 | Connector including isolation magnetic devices capable of handling high speed communications | Brian J. Buckmeier, John Hess, Edwin Edralin | 2008-09-30 |
| 6997265 | Method and apparatus for offline standbuilding | — | 2006-02-14 |
| 6976540 | Method and apparatus for offline standbuilding | — | 2005-12-20 |
| 5501286 | Method and apparatus for displacing a top drive torque track | — | 1996-03-26 |
| 5388651 | Top drive unit torque break-out system | — | 1995-02-14 |
| 5381867 | Top drive torque track and method of installing same | — | 1995-01-17 |
| 5107940 | Top drive torque restraint system | — | 1992-04-28 |
| 5074518 | Proportional annular B.O.P. controller | — | 1991-12-24 |
| 4715761 | Universal floor mounted pipe handling machine | Faustyn C. Langowski, James G. Renfro, Jr., Roger D. Smith | 1987-12-29 |
| 4667752 | Top head drive well drilling apparatus with stabbing guide | William R. Hamilton | 1987-05-26 |
| 4647099 | Lifting head | Archie L. Black, William R. Hamilton | 1987-03-03 |
| 4462733 | Beam type racking system | Faustyn C. Langowski, Joseph R. Priest | 1984-07-31 |