Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9617791 | Sidetracking system and related methods | Praful C. Desai | 2017-04-11 |
| 9605485 | Percussion drilling assembly and hammer bit with gage and outer row reinforcement | Angelo Spedale, Charles H. Dewey, Alan J. Marshall | 2017-03-28 |