Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8330616 | Well test system to control well processes based on quantity measurements | Mark L. Surber, Mike G. Hagenston, Robert C Riley, Michael E. Crossman, Lee M Britt | 2012-12-11 |
| 7419017 | Multi-sectional percussive drill bit assembly | Thomas Walker, Richard K. Smith | 2008-09-02 |
| 7389833 | Multi-sectional percussive drill bit assembly | Thomas Walker, Richard K. Smith | 2008-06-24 |