Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8820441 | Combination coring bit and drill bit using fixed cutter PDC cutters | — | 2014-09-02 |
| 8561725 | Ultra-hard drill collar | David Wilde | 2013-10-22 |
| 8327951 | Drill bit having functional articulation to drill boreholes in earth formations in all directions | David Wilde | 2012-12-11 |
| 7878273 | Ultra-hard drilling stabilizer | David Wilde | 2011-02-01 |
| 7849940 | Drill bit having the ability to drill vertically and laterally | David Wilde | 2010-12-14 |
| 7841427 | Optimized central PDC cutter and method | Vincent Salvo | 2010-11-30 |
| 7757792 | Method and apparatus for selectively leaching portions of PDC cutters already mounted in drill bits | — | 2010-07-20 |
| 7712553 | Method and apparatus for selectively leaching portions of PDC cutters used in drill bits | — | 2010-05-11 |
| 5695019 | Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts | — | 1997-12-09 |
| 5636700 | Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction | — | 1997-06-10 |