Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11702888 | Window mill and whipstock connector for a resource exploration and recovery system | Philip M. Gregurek, Gregory L. Hern, Jason L. Cullum, Valerie Ferdin, Gaute Grindhaug +2 more | 2023-07-18 |
| 11421496 | Mill to whipstock connection system | Tuan Nguyen, Philip M. Gregurek, Gregory L. Hern, Christopher Michalec, Gaute Grindhaug +1 more | 2022-08-23 |
| 11162315 | Window mill and whipstock connector for a resource exploration and recovery system | Gregory L. Hern, Philip M. Gregurek, Jason L. Cullum, Valerie Ferdin, Gaute Grindhaug +1 more | 2021-11-02 |
| 10408025 | Retaining and positioning end cap for downhole setting tool power charges | Gregory L. Hern, Kent S. Meyer | 2019-09-10 |
| 10365079 | Igniter and ignition device for downhole setting tool power charge | Larry Palmer, Zhiyue Xu, YingQing Xu, Lei Zhao, Kent S. Meyer | 2019-07-30 |
| 9677357 | Anchor slip and seal locking mechanism | Gregory L. Hern, Yang Xu | 2017-06-13 |
| 9416593 | Piston strike face and bit interface for percussion hammer drill | Xiaoge Gan, Lokesh Bhatia, Robert H. Slaughter, Jr. | 2016-08-16 |
| 8651202 | Percussion drilling assembly having a floating feed tube | Shantanu N. Swadi, Lance D. Underwood, Jack Marshall, Charles H. Dewey | 2014-02-18 |
| 7950475 | Percussion drilling assembly having a floating feed tube | Shantanu N. Swadi, Lance D. Underwood, Jack Marshall, Charles H. Dewey | 2011-05-31 |
| 5582306 | Closet organizer | Neil T. Balter | 1996-12-10 |
| 5131476 | Down hole percussion drill apparatus | — | 1992-07-21 |