Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392199 | Earth-boring tool geometry and associated apparatus and methods | Nathan S. Lockwood | 2025-08-19 |
| 11332980 | Earth-boring tools having a gauge insert configured for reduced bit walk and method of drilling with same | Steven Craig Russell, Kenneth R. Evans, Stephen Manson Slavens, Reed W. Spencer | 2022-05-17 |
| 10689911 | Roller cone earth-boring rotary drill bits including disk heels and related systems and methods | Justin Papke Shields, Rudolf Carl Pessier | 2020-06-23 |
| 6227314 | Inclined leg earth-boring bit | Glenn R. Zadrapa, Gregory L. Ricks, Kenneth C. Brannon, Kevin W. Schader | 2001-05-08 |
| 6050354 | Rolling cutter bit with shear cutting gage | Rudolf Carl Pessier, Danny E. Scott | 2000-04-18 |
| 5979575 | Hybrid rock bit | James L. Overstreet, Brian Baker, Matthew J. Meiners | 1999-11-09 |
| 5697462 | Earth-boring bit having improved cutting structure | Rudolf Carl Pessier, Christopher J. Rohmer | 1997-12-16 |
| 5655612 | Earth-boring bit with shear cutting gage | Danny E. Scott, Rudolf Carl Pessier | 1997-08-12 |
| 5542485 | Earth-boring bit with improved cutting structure | Rudolf Carl Pessier, Danny E. Scott, Matthew R. Isbell | 1996-08-06 |
| 5479997 | Earth-boring bit with improved cutting structure | Danny E. Scott, Matthew R. Isbell, Rudolf Carl Pessier | 1996-01-02 |
| 5467836 | Fixed cutter bit with shear cutting gage | Danny E. Scott, Rudolf Carl Pessier | 1995-11-21 |
| 5351768 | Earth-boring bit with improved cutting structure | Danny E. Scott, Matthew R. Isbell, Rudolf Carl Pessier | 1994-10-04 |
| 5323865 | Earth-boring bit with an advantageous insert cutting structure | Matthew R. Isbell, Rudolf Carl Pessier | 1994-06-28 |
| 5287936 | Rolling cone bit with shear cutting gage | Danny E. Scott | 1994-02-22 |
| 4227255 | Signal classifier | Robert L. Carrick, William T. Manning | 1980-10-07 |