Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12258815 | Earth-boring tools including rotatable cutting elements, rotatable cutting elements, and associated components and methods | Jon David Schroder | 2025-03-25 |
| 12188300 | Protected back-up rings for metal face seals and earth boring tools incorporating the same | Jon David Schroder | 2025-01-07 |
| 11920409 | Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools | Steven Craig Russell, Stephen Duffy | 2024-03-05 |
| 11131148 | Seal assembly for use in earth-boring rotary tools in subterranean boreholes and related methods | — | 2021-09-28 |
| 10801266 | Earth-boring tools having fixed blades and rotatable cutting structures and related methods | Mitchell A. Rothe, Floyd C. Felderhoff | 2020-10-13 |
| 10633929 | Self-adjusting earth-boring tools and related systems | Kenneth R. Evans | 2020-04-28 |
| 10273759 | Self-adjusting earth-boring tools and related systems and methods | Chaitanya K. Vempati, Jayesh Rameshlal Jain, Juan Miguel Bilen, Anthony Phillips | 2019-04-30 |
| 10132122 | Earth-boring rotary tools having fixed blades and rolling cutter legs, and methods of forming same | Floyd C. Felderhoff, Rudolf Carl Pessier | 2018-11-20 |
| 10094174 | Earth-boring tools including passively adjustable, aggressiveness-modifying members and related methods | Jayesh Rameshlal Jain, Chaitanya K. Vempati, Juan Miguel Bilen | 2018-10-09 |
| 10000977 | Drill bit with self-adjusting pads | Jayesh Rameshlal Jain, Benjamin Baxter, Chaitanya K. Vempati, Steven R. Radford, Volker Peters +3 more | 2018-06-19 |
| 9782857 | Hybrid drill bit having increased service life | Don Q. Nguyen, Carl E. Poteet, III, Eric C. Sullivan, John F. Bradford, Mark P. Blackman +1 more | 2017-10-10 |
| 9708859 | Drill bit with self-adjusting pads | Jayesh Rameshlal Jain, Benjamin Baxter, Chaitanya K. Vempati, Steven R. Radford, Miguel Bilen +2 more | 2017-07-18 |
| 9476259 | System and method for leg retention on hybrid bits | Floyd C. Felderhoff, Rudolf Carl Pessier | 2016-10-25 |
| 9249629 | Enhanced backup ring edge features for metal face seal in roller cone drill bits | Chih Lin, Terry J. Koltermann, Anton F. Zahradnik | 2016-02-02 |
| 9157280 | Enhanced backup ring features for metal face seal in roller cone drill bits | Chih Lin, Terry J. Koltermann, Anton F. Zahradnik, Alejandro Flores | 2015-10-13 |
| 8579050 | Reamer with balanced cutting structure for use in a wellbore | Rudolf Carl Pessier, Scott Allan Young, Robert J. Buske, Mark P. Blackman | 2013-11-12 |
| 7708090 | Excluder ring for earth-boring bit | Anton F. Zahradnik, Gregory W. Peterson, Don Q. Nguyen, Chih Lin, Terry J. Koltermann | 2010-05-04 |
| 7413037 | Metal face seal for an earth-boring bit | Chih Lin, Don Q. Nguyen, Terry J. Koltermann | 2008-08-19 |
| 7350600 | Shirttails for reducing damaging effects of cuttings | Christopher C. Beuershausen, Raul E. Lema, Ronald Hales, Don Q. Nguyen, Chih Lin +6 more | 2008-04-01 |
| 7306061 | Mud diverter for earth-boring bit | Chih Lin | 2007-12-11 |
| 7182162 | Shirttails for reducing damaging effects of cuttings | Christopher C. Beuershausen, Raul E. Lema, Ronald Hales, Don Q. Nguyen, Chih Lin +6 more | 2007-02-27 |
| 7066286 | Gage surface scraper | Don Q. Nguyen, Terry J. Koltermann, Mark E. Morris, Chris M. McCarty, Chih Lin | 2006-06-27 |
| 6227314 | Inclined leg earth-boring bit | Glenn R. Zadrapa, Kenneth C. Brannon, Robert E. Grimes, Kevin W. Schader | 2001-05-08 |