Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7066280 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Timothy K. Marvel +1 more | 2006-06-27 |
| 6626251 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Chih Lin | 2003-09-30 |
| 6571886 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Timothy K. Marvel +1 more | 2003-06-03 |
| 6543312 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Chih Lin | 2003-04-08 |
| 6540033 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Chih Lin | 2003-04-01 |
| 6419032 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Chih Lin | 2002-07-16 |
| 6230822 | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations | Eric C. Sullivan, Theodore E. Zaleski, Jr., Scott Ray Schmidt, Don Q. Nguyen, Chih Lin | 2001-05-15 |
| 6227314 | Inclined leg earth-boring bit | Gregory L. Ricks, Kenneth C. Brannon, Robert E. Grimes, Kevin W. Schader | 2001-05-08 |