Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992427 | Device and method for testing friction reduction efficiency and suspension systems | Narongsak Tonmukayakul, Robert Pipkin | 2011-08-09 |
| 7960315 | Treatment fluids comprising diutan and associated methods | Thomas D. Welton, Richard W. Pauls, Lulu Song, Sean R. Beach, Ian D. Robb | 2011-06-14 |
| 7939471 | Subterranean treatment fluids comprising viscoelastic surfactant gels | Thomas D. Welton | 2011-05-10 |
| 7938187 | Dual functional components and associated methods | Richard W. Pauls, Thomas D. Welton, David E. McMechan | 2011-05-10 |
| 7910524 | Treatment fluids comprising diutan and associated methods | Thomas D. Welton, Richard W. Pauls, Lulu Song, Sean R. Beach, Ian D. Robb | 2011-03-22 |
| 7896075 | Subterranean treatment fluids with enhanced particulate transport or suspension capabilities and associated methods | Harold Grayson Walters, Phillip C. Harris | 2011-03-01 |
| 7846878 | Friction reducer performance in water containing multivalent ions | Ian D. Robb, Thomas D. Welton, Michael L. Carter | 2010-12-07 |
| 7825073 | Treatment fluids comprising clarified xanthan and associated methods | Thomas D. Welton, Michael W. Sanders, Jeffery L. Mundy, Sean R. Beach, Richard W. Pauls +8 more | 2010-11-02 |
| 7814980 | Micro-crosslinked gels and associated methods | Thomas D. Welton, Richard W. Pauls | 2010-10-19 |
| 7748456 | Dual functional components and associated methods | Richard W. Pauls, Thomas D. Welton, David E. McMechan | 2010-07-06 |
| 7727935 | Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids | Thomas D. Welton, David E. McMechan | 2010-06-01 |
| 7718584 | Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids | Thomas D. Welton, David E. McMechan | 2010-05-18 |
| 7712534 | Treatment fluids having biocide and friction reducing properties and associated methods | David E. McMechan, Michael A. McCabe, J. Michael Wilson, Karen L. King | 2010-05-11 |
| 7621329 | Methods of pumping fluids having different concentrations of particulate at different average bulk fluid velocities to reduce pump wear and maintenance in the forming and delivering of a treatment fluid into a wellbore | Leonard R. Case, Michael Segura, Harold Grayson Walters, Herbert J. Horinek, Jonn Thompson +3 more | 2009-11-24 |
| 7621328 | Methods of pumping fluids having different concentrations of particulate with different concentrations of hydratable additive to reduce pump wear and maintenance in the forming and delivering of a treatment fluid into a wellbore | Leonard R. Case, Michael Segura, Harold Grayson Walters, Herbert J. Horinek, Jonn Thompson +3 more | 2009-11-24 |
| 7621330 | Methods of using a lower-quality water for use as some of the water in the forming and delivering of a treatment fluid into a wellbore | Harold Grayson Walters, Leonard R. Case, Jonn Thompson, Michael Segura, Herbert Hornick +3 more | 2009-11-24 |
| 7445044 | Polymer mixtures for crosslinked fluids | Harold Grayson Walters, Billy Slabaugh | 2008-11-04 |
| 7413013 | Surfactant-based fluid loss control agents for surfactant gels and associated fluids and methods | Thomas D. Welton, David E. McMechan | 2008-08-19 |
| 6843764 | Non-trapped stripper belt | Christopher Alan Cloutier, Christian Heinz Miescher | 2005-01-18 |