Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12055003 | Advanced loading method for ball rotation cutting and method of use therefor | Kenneth L. Schwendemann, Benjamin Thomas Derryberry | 2024-08-06 |
| 11965394 | Subsea test tree fast ball actuation with low pressure pump through capability | Ryan A. Turner, Kenneth L. Schwendemann | 2024-04-23 |
| 11788378 | Locally powered electric ball valve mechanism | Kenneth L. Schwendemann, Benjamin Thomas Derryberry | 2023-10-17 |
| 10961817 | Electrohydraulic quick union for subsea landing string | Russell Stephen Haake, Stevan Jaye Sparks, Kenneth L. Schwendemann, Steven B. Scheibel, Benjamin Thomas Derryberry | 2021-03-30 |
| 10794138 | Modular manifold system for an electrohydraulic control system | Benjamin Thomas Derryberry | 2020-10-06 |
| 8818776 | System and method for downhole tool system development | Harold Kent Beck, Kenneth L. Schwendemann, David Russ Larimore, Brandon Beau Beaver, Alexander G. Krasovsky | 2014-08-26 |
| RE42733 | Wear-resistant, variable diameter expansion tool and expansion methods | John C. Gano, Kenneth L. Schwendemann, Ralph H. Echols, Perry C. Shy | 2011-09-27 |
| 7363967 | Downhole tool with navigation system | Wesley J. Burris, II, Kenneth L. Schwendemann, Phillip M. Starr, Michael Linley Fripp, John J. Goiffon +2 more | 2008-04-29 |
| 7322416 | Methods of servicing a well bore using self-activating downhole tool | Wesley J. Burris, II, Kenneth L. Schwendemann, Phillip M. Starr, Michael Linley Fripp, John J. Goiffon +2 more | 2008-01-29 |
| 6808024 | Downhole seal assembly and method for use of same | Kenneth L. Schwendemann, Brian D. Higgins, Beegamudre N. Murali | 2004-10-26 |
| 6722427 | Wear-resistant, variable diameter expansion tool and expansion methods | John C. Gano, Kenneth L. Schwendemann, Ralph H. Echols, Perry C. Shy | 2004-04-20 |
| 6367547 | Downhole separator for use in a subterranean well and method | Kenneth L. Schwendemann | 2002-04-09 |
| 6279651 | Tool for managing fluid flow in a well | Kenneth L. Schwendemann | 2001-08-28 |
| 5894890 | Normally closed retainer valve with fail-safe pump through capability | Virgilio Garcia-Soule, Kenneth L. Schwendemann | 1999-04-20 |
| 5884707 | Normally closed retainer valve with fail-safe pump through capability | Virgilio Garcia-Soule, Kenneth L. Schwendemann | 1999-03-23 |
| 5884703 | Normally closed retainer valve with fail-safe pump through capability | Virgilio Garcia-Soule, Kenneth L. Schwendemann | 1999-03-23 |
| 5884708 | Normally closed retainer valve with fail-safe pump through capability | Virgilio Garcia-Soule, Kenneth L. Schwendemann | 1999-03-23 |
| 5782304 | Normally closed retainer valve with fail-safe pump through capability | Virgilio Garcia-Soule, Kenneth L. Schwendemann | 1998-07-21 |