Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11401819 | Turbine blade platform cooling holes | Nnawuihe Okpara, Donald Joseph Bognatz, Marius Dumitrascu, Estevan Daniel Negrete | 2022-08-02 |
| 10605008 | Methods of forming a cutting element including a multi-layered cutting table, and related cutting elements and earth-boring tools | — | 2020-03-31 |
| 10282495 | Methods of evaluating performance of cutting elements for earth-boring tools | Konrad T. Izbinski, Nicholas J. Lyons, Alejandro Flores, Suresh G. Patel, Jarod DeGeorge | 2019-05-07 |
| 9316055 | Drill bit with a dynamic metal seal | Chih Lin, Jon David Schroder, Anton F. Zahradnik, Alejandro Flores, Robert Bradshaw | 2016-04-19 |
| 9290997 | Downhole tools including bearings and methods of forming same | Alejandro Flores, Chih Lin, John F. Bradford, Louise F. van Staden, Gregory B. Swanepoel +4 more | 2016-03-22 |
| 8834026 | Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearings | Alejandro Flores, Chih Lin, John F. Bradford, Louise F. van Staden, Gregory B. Swanepoel +4 more | 2014-09-16 |
| 8776916 | Drilling motors with elastically deformable lobes | — | 2014-07-15 |
| 8196682 | Earth boring bit with wear resistant bearing and seal | Chih Lin | 2012-06-12 |
| 8028770 | Conformal bearing for rock drill bit | Chih Lin, Terry J. Koltermann, Anton F. Zahradnik, Daniel E. Scott, Don Q. Nguyen +4 more | 2011-10-04 |
| 7975779 | Threaded cone retention system for roller cone bits | Anton F. Zahradnik, Don Q. Nguyen, Eric C. Sullivan, Terry J. Koltermann, Scott Shiqiang Shu | 2011-07-12 |
| 7946768 | Bearing apparatuses, systems including same, and related methods | Craig H. Cooley | 2011-05-24 |
| 7861805 | Conformal bearing for rock drill bit | Chih Lin, Terry J. Kolterman, Anton F. Zahradnik, Dan E. Scott, Don Q. Nguyen +4 more | 2011-01-04 |
| 7694754 | Stabilized seal for rock bits | — | 2010-04-13 |
| 7465096 | Earth boring bit with tilted hydrodynamic thrust bearing | Chih Lin | 2008-12-16 |
| 7387177 | Bearing insert sleeve for roller cone bit | Anton F. Zahradnik, Terry J. Koltermann, Don Q. Nguyen, Eric C. Sullivan, Scott Shiqiang Shu | 2008-06-17 |
| 7267186 | Magnetic face seal for rock drill bit bearings | — | 2007-09-11 |
| 7234541 | DLC coating for earth-boring bit seal ring | Danny E. Scott, Chih Lin | 2007-06-26 |
| 7128171 | Hydrodynamic pump passages for rolling cone drill bit | Chih Lin | 2006-10-31 |
| 5735355 | Rock melting tool with annealer section | Gilles Yves Albert Bussod, George E. Cort | 1998-04-07 |