Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9782857 | Hybrid drill bit having increased service life | Carl E. Poteet, III, Eric C. Sullivan, John F. Bradford, Mark P. Blackman, Alan J. Massey +1 more | 2017-10-10 |
| 9670736 | Hybrid drill bit | Anton F. Zahradnik, Ron D. McCormick, Rudolf Carl Pessier, Jack T. Oldham, Michael S. Damschen +3 more | 2017-06-06 |