Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10612346 | Concentric flow valve | Richard J. Ross | 2020-04-07 |
| 8157017 | Method and apparatus for injecting fluid in a wellbore | Richard J. Ross | 2012-04-17 |
| 7980315 | System and method for selectively communicatable hydraulic nipples | Jeffrey L. Bolding | 2011-07-19 |
| 7845416 | Hydraulic sleeve valve with position indication, alignment, and bypass | Richard J. Ross | 2010-12-07 |
| 7810575 | Isolation system comprising a plug and a circulation valve and method of use | — | 2010-10-12 |
| 7665526 | System and method for downhole operation using pressure activated and sleeve valve assembly | Marvin Bryce Traweek, Richard J. Ross | 2010-02-23 |
| 7520333 | Hydraulic sleeve valve with position indication, alignment, and bypass | Richard J. Ross, Kenneth E. Rozek, Todd Ulrich Chretien | 2009-04-21 |
| RE40648 | System and method for downhole operation using pressure activated valve and sliding sleeve | Marvin Bryce Traweek, Dick Ross | 2009-03-10 |
| 7497265 | Reclosable mechanical annular flow valve | Richard J. Ross | 2009-03-03 |
| 7490669 | Multi-zone, single trip well completion system and methods of use | David Walker, Gregg W. Stout, Todd Ulrich Chretien, Christopher L. Blackler, Jack Robbins +1 more | 2009-02-17 |
| 7395862 | Combination jar and disconnect tool | Richard J. Ross | 2008-07-08 |
| 7383884 | Cross-over tool | Marvin Bryce Traweek, Stephen C. Yeary, Gregg W. Stout, Christopher L. Blackler | 2008-06-10 |
| 7210535 | Isolation system comprising a plug and a circulation valve and method of use | — | 2007-05-01 |
| 7201232 | Washpipeless isolation strings and methods for isolation with object holding service tool | Donald H. Michel, Marvin Bryce Traweek, Richard J. Ross, Floyd Bishop, Gregg W. Stout | 2007-04-10 |
| 7198109 | Double-pin radial flow valve | Richard J. Ross | 2007-04-03 |
| 7152678 | System and method for downhole operation using pressure activated valve and sliding sleeve | Marvin Bryce Traweek, Dick Ross | 2006-12-26 |
| 7150326 | Bi-directional ball seat system and method | Floyd Bishop, Marvin Bryce Traweek, Richard J. Ross, David Walker | 2006-12-19 |
| 7124824 | Washpipeless isolation strings and methods for isolation | Donald H. Michel, Marvin Bryce Traweek, Richard J. Ross, Floyd Bishop | 2006-10-24 |
| 7021389 | Bi-directional ball seat system and method | Floyd Bishop, Marvin Bryce Traweek, Richard J. Ross, David Walker | 2006-04-04 |
| 6981551 | Cross-over tool return port cover | Marvin Bryce Traweek, Christopher L. Blackler, Stephen C. Yeary, Gregg W. Stout | 2006-01-03 |
| 6722440 | Multi-zone completion strings and methods for multi-zone completions | Marvin Bryce Traweek, Dick Ross | 2004-04-20 |
| 6405800 | Method and apparatus for controlling fluid flow in a well | David Walker, Marvin Bryce Traweek | 2002-06-18 |
| 6397949 | Method and apparatus for production using a pressure actuated circulating valve | David Walker, William David Henderson, Mike Ritter | 2002-06-04 |
| 4570714 | Gravel pack assembly | Raymond A. Menard, Dean S. Oneal | 1986-02-18 |