Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9145739 | Fixed cutter drill bit for abrasive applications | Carl M. Hoffmaster, Shelton W. Alsup, Michael G. Azar, Thomas W. Oldham, Stuart Oliver | 2015-09-29 |
| 7798256 | Fixed cutter drill bit for abrasive applications | Carl M. Hoffmaster, Shelton W. Alsup, Michael G. Azar, Thomas W. Oldham, Stuart Oliver | 2010-09-21 |