| 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 |