Issued Patents All Time
Showing 1–25 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11732531 | Modular earth boring tools having fixed blades and removable blade assemblies and related methods | Anton F. Zahradnik, Don Q. Nguyen | 2023-08-22 |
| 11229989 | Methods of forming cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods | Juan Miguel Bilen, Anthony A. DiGiovanni, Chih Lin, Suresh G. Patel, Danny E. Scott +1 more | 2022-01-25 |
| 10871036 | Hybrid drill bit and design method | Anton F. Zahradnik, Don Q. Nguyen, Matthew J. Meiners, Karlos B. Cepeda, Michael S. Damschen +3 more | 2020-12-22 |
| 10689911 | Roller cone earth-boring rotary drill bits including disk heels and related systems and methods | Justin Papke Shields, Robert E. Grimes | 2020-06-23 |
| 10450807 | Earth-boring tools having shaped cutting elements | Danny E. Scott, Nicholas J. Lyons, Juan Miguel Bilen, Oliver Matthews | 2019-10-22 |
| 10428590 | Cutting elements for earth-boring tools and earth-boring tools including such cutting elements | Anthony A. DiGiovanni | 2019-10-01 |
| 10385623 | Cutting elements for earth-boring tools and earth-boring tools including such cutting elements | Anthony A. DiGiovanni | 2019-08-20 |
| 10370911 | Methods and systems for drilling boreholes in earth formations | David A. Curry, Reed W. Spencer, Andrea Kuesters, John Wingate | 2019-08-06 |
| 10337255 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods | Anthony A. DiGiovanni, Yavuz Kadioglu, Danny E. Scott, Matthew J. Meiners, Nicholas J. Lyons +5 more | 2019-07-02 |
| 10316589 | Hybrid drill bit and design method | Anton F. Zahradnik, Don Q. Nguyen, Matthew J. Meiners, Karlos B. Cepeda, Michael S. Damschen +3 more | 2019-06-11 |
| 10190366 | Hybrid drill bits having increased drilling efficiency | Anton F. Zahradnik, Robert J. Buske, Don Q. Nguyen, Karlos B. Cepeda, Michael S. Damschen +5 more | 2019-01-29 |
| 10132122 | Earth-boring rotary tools having fixed blades and rolling cutter legs, and methods of forming same | Gregory L. Ricks, Floyd C. Felderhoff | 2018-11-20 |
| 10072462 | Hybrid drill bits | Anton F. Zahradnik, Mitchell A. Rothe, Don Q. Nguyen, Karlos B. Cepeda, Michael S. Damschen +5 more | 2018-09-11 |
| 10066442 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods | Suresh G. Patel, Danny E. Scott | 2018-09-04 |
| 9821437 | Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods | Juan Miguel Bilen, Anthony A. DiGiovanni, Chih Lin, Suresh G. Patel, Danny E. Scott +1 more | 2017-11-21 |
| 9732562 | Earth-boring tools having shaped cutting elements | Danny E. Scott, Nicholas J. Lyons, Juan Miguel Bilen, Oliver Matthews | 2017-08-15 |
| 9670736 | Hybrid drill bit | Anton F. Zahradnik, Ron D. McCormick, Jack T. Oldham, Michael S. Damschen, Don Q. Nguyen +3 more | 2017-06-06 |
| 9644430 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods | Danny E. Scott | 2017-05-09 |
| 9617792 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods | Anthony A. DiGiovanni | 2017-04-11 |
| 9482057 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods | Anthony A. DiGiovanni | 2016-11-01 |
| 9476259 | System and method for leg retention on hybrid bits | Gregory L. Ricks, Floyd C. Felderhoff | 2016-10-25 |
| 9428966 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods | Suresh G. Patel, Danny E. Scott | 2016-08-30 |
| 9376867 | Methods of drilling a subterranean bore hole | Anthony A. DiGiovanni | 2016-06-28 |
| 9353575 | Hybrid drill bits having increased drilling efficiency | Anton F. Zahradnik, Robert J. Buske, Don Q. Nguyen, Karlos B. Cepeda, Michael S. Damschen +5 more | 2016-05-31 |
| 9243452 | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods | Anthony A. DiGiovanni, Yavuz Kadioglu, Danny E. Scott, Matthew J. Meiners, Nicholas J. Lyons +5 more | 2016-01-26 |