Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9869749 | System and method to generate three-dimensional mapping of a tubular component layout | — | 2018-01-16 |
| 7000715 | Rotary drill bits exhibiting cutting element placement for optimizing bit torque and cutter life | Lawrence Allen Sinor, Christopher C. Beuershausen, Mark W. Dykstra, Roger Fincher, Rudolf Carl Pessier | 2006-02-21 |
| 6742611 | Laminated and composite impregnated cutting structures for drill bits | Gordon A. Tibbitts | 2004-06-01 |
| 6443249 | Rotary drill bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics | Christopher C. Beuershausen, Mark W. Dykstra, Roger Fincher, Steve R. Matson, James A. Norris +2 more | 2002-09-03 |
| 6321862 | Rotary drill bits for directional drilling employing tandem gage pad arrangement with cutting elements and up-drill capability | Christopher C. Beuershausen, Robert J. Costo, Jr., Danny E. Scott, Rudolf Carl Pessier, Mark W. Dykstra +3 more | 2001-11-27 |
| 6230828 | Rotary drilling bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics | Christopher C. Beuershausen, Mark W. Dykstra, Roger Fincher, Steve R. Matson, James A. Norris +2 more | 2001-05-15 |
| 6112836 | Rotary drill bits employing tandem gage pad arrangement | John R. Spaar, James A. Norris, Christopher C. Beuershausen, Rudolf Carl Pessier, Michael P. Ohanian +2 more | 2000-09-05 |
| 6006845 | Rotary drill bits for directional drilling employing tandem gage pad arrangement with reaming capability | Christopher C. Beuershausen, Mark W. Dykstra, James A. Norris, Michael P. Ohanian, Rudolf Carl Pessier +1 more | 1999-12-28 |
| 4690228 | Changeover bit for extended life, varied formations and steady wear | Dieter Voelz | 1987-09-01 |
| 4537097 | Method and apparatus for manufacturing cutting elements particularly for deep drilling | Rainer Jurgens | 1985-08-27 |