Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9050656 | Casting of tungsten carbide matrix bit heads and heating bit head portions with microwave radiation | Durell M. Ashby | 2015-06-09 |
| 8738342 | Method and apparatus to improve design, manufacture, performance and/or use of well tools | William H. Lind | 2014-05-27 |
| 8374835 | Method and apparatus to improve design, manufacture, performance and/or use of well tools | William H. Lind | 2013-02-12 |
| 6879947 | Method for optimizing the bit design for a well bore | — | 2005-04-12 |
| 6695073 | Rock drill bits, methods, and systems with transition-optimized torque distribution | Oliver Matthews | 2004-02-24 |