Issued Patents All Time
Showing 26–50 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7192907 | High performance water-based drilling mud and method of use | Emanuel Stamatakis, Steve Young | 2007-03-20 |
| 7178594 | Method for using reversible phase oil-based drilling fluid | — | 2007-02-20 |
| 7094738 | Phospholipid lubricating agents in aqueous based drilling fluids | Eric A. Davis, Steven Young, Emanuel Stamatakis | 2006-08-22 |
| 7084092 | Shale hydration inhibition agent and method of use | Emanuel Stamatakis, Eric A. Davis, Jim Friedheim | 2006-08-01 |
| 7081437 | Environmentally compatible hydrocarbon blend drilling fluid | Jim Friedheim, John Candler, Stephen Rabke | 2006-07-25 |
| 6857485 | Shale hydration inhibition agent and method of use | Emanuel Stamatakis, Eric A. Davis, Steve Cliffe | 2005-02-22 |
| 6831043 | High performance water based drilling mud and method of use | Emanuel Stamatakis, Eric A. Davis, Jim Friedheim | 2004-12-14 |
| 6828279 | Biodegradable surfactant for invert emulsion drilling fluid | Burnhan Hoxha, Reginald Bell | 2004-12-07 |
| 6806233 | Methods of using reversible phase oil based drilling fluid | — | 2004-10-19 |
| 6793025 | Double emulsion based drilling fluids | Reginald Bell, Steve Young, Ahmadi Tehrani | 2004-09-21 |
| 6790811 | Oil based drilling fluid | — | 2004-09-14 |
| 6770602 | Oil based well fluids with high solids content | Reginald Bell, Burhan Hoxha, Jim Friedheim | 2004-08-03 |
| 6609578 | Shale hydration inhibition agent and method of use | Emanual Stamatakis, Eric A. Davis | 2003-08-26 |
| 6589917 | Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility | Jim Friedheim | 2003-07-08 |
| 6484821 | Shale hydration inhibition agent and method of use | Emanuel Stamatakis, Eric A. Davis | 2002-11-26 |
| 6405809 | Conductive medium for openhold logging and logging while drilling | Reginald Bell, Burhan Hoxha, Steve Young | 2002-06-18 |
| 6308788 | Conductive medium for openhole logging and logging while drilling | Rejinald J. Bell, Burhan Hoxha | 2001-10-30 |
| 6291405 | Glycol based drilling fluid | LiJien Lee, Emanuel Stamatakis | 2001-09-18 |
| 6247543 | Shale hydration inhibition agent and method of use | Emanuel Stamatakis, Eric A. Davis | 2001-06-19 |
| 6029755 | Conductive medium for openhole logging and logging while drilling | — | 2000-02-29 |
| 5990050 | Water soluble invert emulsions | — | 1999-11-23 |
| 5985800 | Invert emulsion fluids suitable for drilling | — | 1999-11-16 |
| 5977031 | Ester based invert emulsion drilling fluids and muds having negative alkalinity | — | 1999-11-02 |
| 5909779 | Oil-based drilling fluids suitable for drilling in the presence of acidic gases | Jayanti Patel, Harris A Oehler | 1999-06-08 |
| 5908814 | Drilling fluid additive and method for inhibiting hydration | Carl Thaemlitz, Henry C. McLaurine, Emanuel Stamatakis | 1999-06-01 |