Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10161239 | Systems and methods for the evaluation of passive pressure containment barriers | Robert Mitchell | 2018-12-25 |
| 9726157 | Enhanced geothermal systems and methods | Jason Pitcher, Norm Warpinski, Mark S. Machala, Joel D. Shaw | 2017-08-08 |
| 8656995 | Detecting and correcting unintended fluid flow between subterranean zones | Glenn Robert McColpin, Eric Davis, Scott D. Marsic, Etienne M. Samson | 2014-02-25 |
| 8517094 | Detecting and correcting unintended fluid flow between subterranean zones | Glenn Robert McColpin, Eric Davis, Scott D. Marsic | 2013-08-27 |
| 8100180 | Method of servicing a wellbore with a sealant composition comprising solid latex | B. Raghava Reddy, Christopher L. Gordon | 2012-01-24 |
| 7314082 | Methods of improving well bore pressure containment integrity | Hong Wang, Wolfgang Deeg | 2008-01-01 |
| 7311147 | Methods of improving well bore pressure containment integrity | Hong Wang, Wolfgang Deeg | 2007-12-25 |
| 7308936 | Methods of improving well bore pressure containment integrity | Hong Wang, Wolfgang Deeg | 2007-12-18 |
| 7213645 | Methods of improving well bore pressure containment integrity | Hong Wang, Wolfgang Deeg | 2007-05-08 |
| 7191830 | Annular pressure relief collar | Chester S. McVay | 2007-03-20 |
| 6926081 | Methods of discovering and correcting subterranean formation integrity problems during drilling | Richard F. Vargo, Jr., David Kulakofsky, Alvaro Escorcia, Krishna M. Ravi | 2005-08-09 |
| 6660080 | Particulate flow enhancing additives | Baireddy R. Reddy, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook | 2003-12-09 |
| 6610139 | Methods of preparing particulate flow enhancing additives | Baireddy R. Reddy, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook | 2003-08-26 |
| 6494951 | Cementing compositions using dry cementitious materials having improved flow properties | Baireddy R. Reddy, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook | 2002-12-17 |
| 6478869 | Flow properties of dry cementitious materials | Baireddy R. Reddy, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook | 2002-11-12 |
| 6379456 | Flow properties of dry cementitious and non-cementitious materials | James F. Heathman, Baireddy R. Reddy, Sears T. Dealy | 2002-04-30 |
| 6258757 | Water based compositions for sealing subterranean zones and methods | Archie J. Felio, James F. Heathman | 2001-07-10 |
| 6245142 | Flow properties of dry cementitious materials | Baireddy R. Reddy, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook | 2001-06-12 |
| 6170575 | Cementing methods using dry cementitious materials having improved flow properties | Baireddy R. Reddy, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook | 2001-01-09 |
| 6167967 | Methods of sealing subterranean zones | — | 2001-01-02 |
| 6060434 | Oil based compositions for sealing subterranean zones and methods | Archie J. Felio, James F. Heathman | 2000-05-09 |
| 5913364 | Methods of sealing subterranean zones | — | 1999-06-22 |
| 4569394 | Method and apparatus for increasing the concentration of proppant in well stimulation techniques | Earl R. Freeman, John Gottschling | 1986-02-11 |
| 4512405 | Pneumatic transfer of solids into wells | Earl R. Freeman, John Gottschling, John B. Simon | 1985-04-23 |
| 4422805 | Method of grouting offshore structures | — | 1983-12-27 |