Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8812281 | Methods for designing secondary cutting structures for a bottom hole assembly | Wei Tang, Gordon Ray Whipple, Sujian Huang, Navish Makkar, Gail Nelson | 2014-08-19 |
| 8794354 | Extendable cutting tools for use in a wellbore | Wei Jake Xu, Albert C. Odell, II, Simon J. Harrall, Thomas M. Redlinger, Christopher M. Vreeland +4 more | 2014-08-05 |
| 8540035 | Extendable cutting tools for use in a wellbore | Wei Jake Xu, Albert C. Odell, II, Simon J. Harrall, Thomas M. Redlinger, Christopher M. Vreeland +4 more | 2013-09-24 |
| 8522646 | Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole | Navish Makkar | 2013-09-03 |
| 8401831 | Methods for designing secondary cutting structures for a bottom hole assembly | Wei Tang, Gordon Ray Whipple, Sujian Huang, Navish Makkar, Gail Nelson | 2013-03-19 |
| 8381837 | Downhole tool deactivation and re-activation | Richard C. Davis | 2013-02-26 |
| 7963348 | Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole | Navish Makkar | 2011-06-21 |
| 7954564 | Placement of cutting elements on secondary cutting structures of drilling tool assemblies | Navish Makkar, Wei Tang, Gordon Ray Whipple, Gail Nelson | 2011-06-07 |
| 7770664 | Wear indicators for expandable earth boring apparatus | Gordon Ray Whipple | 2010-08-10 |