Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11365605 | Locking backpressure valve | Larry T. Palmer, Erik Van Steveninck, Eric Anders Erickson, Scott Bigrigg | 2022-06-21 |
| 11359460 | Locking backpressure valve | Larry T. Palmer, Erik Van Steveninck, Eric Anders Erickson, Scott Bigrigg | 2022-06-14 |
| 11215026 | Locking backpressure valve | Larry T. Palmer, Erik Van Steveninck, Eric Anders Erickson, Scott Bigrigg | 2022-01-04 |
| 11215028 | Locking backpressure valve | Larry T. Palmer, Erik Van Steveninck, Eric Anders Erickson, Scott Bigrigg | 2022-01-04 |
| 10221640 | Method and system for abandoning a cased borehole | Lei Fang | 2019-03-05 |
| 10107065 | Through-tubing deployed annular isolation device and method | Darin H. Duphorne | 2018-10-23 |
| 8955597 | Method and system for abandoning a borehole | Paul L. Connell | 2015-02-17 |
| 8881818 | Tubular cutting with debris filtration | Stephen L. Crow, Marcelle H. Hedrick, Christopher W. Guidry | 2014-11-11 |
| 8881819 | Tubular cutting with a sealed annular space and fluid flow for cuttings removal | Stephen L. Crow, Marcelle H. Hedrick, Christopher W. Guidry | 2014-11-11 |
| 8869896 | Multi-position mechanical spear for multiple tension cuts while removing cuttings | Stephen L. Crow, Marcelle H. Hedrick, Christopher W. Guidry | 2014-10-28 |
| 8727755 | Downhole impression imaging system and methods using shape memory material | Christopher W. Guidry, Edward J. O'Malley | 2014-05-20 |