Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8191654 | Methods of drilling using differing types of cutting elements | Eric E. McClain, John C. Thomas, Sarvesh Tyagi, Jack T. Oldham, William Heuser | 2012-06-05 |
| 7954570 | Cutting elements configured for casing component drillout and earth boring drill bits including same | Eric E. McClain, John C. Thomas, Sarvesh Tyagi, Jack T. Oldham, William Heuser | 2011-06-07 |
| 7900703 | Method of drilling out a reaming tool | John C. Thomas, Jeffrey B. Lund, Eric E. McClain | 2011-03-08 |
| 7621351 | Reaming tool suitable for running on casing or liner | John C. Thomas, Jeffrey B. Lund, Eric E. McClain | 2009-11-24 |