Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12269986 | Low-density hollow glass bead (HGB) fluids for wellbore drilling, completion, and workover operations | Vishwas Gupta, Sai S. Rao, Nikolay M. Kostov, Qian Wu | 2025-04-08 |
| 11634625 | Siloxane surfactant additives for oil and gas applications | Keith Ingram Dismuke, Richard Nelson Fox, Andrei Zelenev, Randal M. Hill | 2023-04-25 |
| 11407930 | Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons | Andrei Zelenev, Lakia M. Champagne, Bill Zhou, Nathan L. Lett, Keith Ingram Dismuke | 2022-08-09 |
| 11149189 | Siloxane surfactant additives for oil and gas applications | Keith Ingram Dismuke, Richard Nelson Fox, Andrei Zelenev, Randal M. Hill | 2021-10-19 |
| 10590332 | Siloxane surfactant additives for oil and gas applications | Keith Ingram Dismuke, Richard Nelson Fox, Andrei Zelenev, Randal M. Hill | 2020-03-17 |
| 10577531 | Polymers and emulsions for use in oil and/or gas wells | John T. Pursley, Charles Earl Hammond, David Germack, Nicole Mast, Deepankar Biswas +1 more | 2020-03-03 |
| 10144862 | Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons | Andrei Zelenev, Lakia M. Champagne, Bill Zhou, Nathan L. Lett, Keith Ingram Dismuke | 2018-12-04 |
| 9951264 | Surfactant formulations for foam flooding | Yu Bian, John T. Pursley | 2018-04-24 |
| 9890316 | Fluid mobility modifiers for increased production in subterranean formations | Thomas D. Welton, Jeremy Holtsclaw, Dipti Singh, Melissa C. Weston, Nathan Carl Schultheiss | 2018-02-13 |
| 9884988 | Methods and compositions for use in oil and/or gas wells | Keith Ingram Dismuke, Randal M. Hill, Andrei Zelenev, James Silas, David Germack +12 more | 2018-02-06 |
| 9200192 | Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons | Andrei Zelenev, Lakia M. Champagne, Bill Zhou, Nathan L. Lett, Keith Ingram Dismuke | 2015-12-01 |
| 7544639 | Composition and process for the treatment of hydrogen sulfide | John T. Pursley, David L. Holcomb | 2009-06-09 |
| 7380606 | Composition and process for well cleaning | John T. Pursley, David L. Holcomb | 2008-06-03 |
| 7122509 | High temperature foamer formulations for downhole injection | J. Todd Sanner, Roger Padgham | 2006-10-17 |
| 5362713 | Drilling mud compositions | John A. Westland, Deborah A. Lenk | 1994-11-08 |
| 5350528 | Method of supporting fractures in geological formations and hydraulic fluid composition for same | John A. Westland, R. Scott Stephens, Alan R. Winslow | 1994-09-27 |
| 5018396 | Cell assembly for determining conductivity and permeability | — | 1991-05-28 |
| 5009797 | Method of supporting fractures in geologic formations and hydraulic fluid composition for same | Robert S. Stephens, Alan R. Winslow | 1991-04-23 |
| 4960527 | Delayed crosslinking of guar gelling agents with ceric salts | — | 1990-10-02 |
| 4922758 | Cell assembly for determining conductivity and permeability | — | 1990-05-08 |
| 4791822 | Cell assembly for determining conductivity and permeability | — | 1988-12-20 |
| 4702849 | Method of increasing hydrocarbon production from subterranean formations | — | 1987-10-27 |
| 4594200 | Compositions for increasing hydrocarbon production from subterranean formations | — | 1986-06-10 |
| 4585065 | Methods of increasing hydrocarbon production from subterranean formations | Walter R. Dill, Tommy R. Gardner | 1986-04-29 |
| 4565639 | Method of increasing hydrocarbon production by remedial well treatment | James E. Briscoe | 1986-01-21 |