Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11382272 | Traction belt for an inclined conveyor of a combine harvester | Jan-Henning Quass, Andre Kucharczyk, Eduard Lorenz | 2022-07-12 |
| 10047565 | Cutting element retention for high exposure cutting elements on earth-boring tools | Kenneth R. Evans | 2018-08-14 |
| 10001005 | Drill bit with hydraulically adjustable axial pad for controlling torsional fluctuations | Chad J. Beuershausen | 2018-06-19 |
| 9915138 | Drill bit with hydraulically adjustable axial pad for controlling torsional fluctuations | Chad J. Beuershausen | 2018-03-13 |
| 9890597 | Drill bits and tools for subterranean drilling including rubbing zones and related methods | Cara D. Weinheimer | 2018-02-13 |
| 9644428 | Drill bit with a hybrid cutter profile | — | 2017-05-09 |
| 9309723 | Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling | Cara D. Weinheimer | 2016-04-12 |
| 9303460 | Cutting element retention for high exposure cutting elements on earth-boring tools | Kenneth R. Evans | 2016-04-05 |
| 9255449 | Drill bit with electrohydraulically adjustable pads for controlling depth of cut | Dan Raz, Gregory Rinberg, Mark Bruk | 2016-02-09 |
| 9181794 | Graph to analyze drilling parameters | Hatem Oueslati, Rudolf Carl Pessier, Hanno Reckmann, Bernhard Meyer-Heye | 2015-11-10 |
| 9181756 | Drill bit with a force application using a motor and screw mechanism for controlling extension of a pad in the drill bit | Dan Raz, Gregory Rinberg | 2015-11-10 |
| 9140074 | Drill bit with a force application device using a lever device for controlling extension of a pad from a drill bit surface | Dan Raz, Gregory Rinberg | 2015-09-22 |
| 9103175 | Drill bit with hydraulically-activated force application device for controlling depth-of-cut of the drill bit | — | 2015-08-11 |
| 9097065 | Drill bit design for mitigation of stick slip | Hatem Oueslati, Leroy W. Ledgerwood, III, Jayesh Rameshlal Jain, Danielle M. Fuselier | 2015-08-04 |
| 9080390 | Turbine driven reaming bit with profile limiting torque fluctuation | Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf Carl Pessier | 2015-07-14 |
| 8978787 | Turbine driven reaming bit with blades and cutting structure extending into concave nose | Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf Carl Pessier | 2015-03-17 |
| 8973685 | Turbine driven reaming bit with stability and cutting efficiency features | Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf Carl Pessier | 2015-03-10 |
| 8893821 | Apparatus and method for tool face control using pressure data | — | 2014-11-25 |
| 8757297 | Rotary drill bits including bearing blocks | Enis Aliko | 2014-06-24 |
| 8534384 | Drill bits with cutters to cut high side of wellbores | Chad J. Beuershausen, Britney E. Meckfessel, Trung Huynh | 2013-09-17 |
| 8459382 | Rotary drill bits including bearing blocks | Enis Aliko | 2013-06-11 |
| 8230952 | Sleeve structures for earth-boring tools, tools including sleeve structures and methods of forming such tools | Henning Finke, Thomas Ganz | 2012-07-31 |
| 8079430 | Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off-center drilling | Trung Huynh, Chad J. Beuershausen | 2011-12-20 |
| 7814997 | Interchangeable bearing blocks for drill bits, and drill bits including same | Enis Aliko | 2010-10-19 |
| 7594554 | Cutting element insert for backup cutters in rotary drill bits, rotary drill bits so equipped, and methods of manufacture therefor | Thomas Ganz | 2009-09-29 |