Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9139762 | Swellable polymer with cationic sites | Ahmad Moradi-Araghi, James H. Hedges, David R. Zornes, Huili Guan, Jenn-Tai Liang +4 more | 2015-09-22 |
| 9139760 | Crosslinked swellable polymer | Ahmad Moradi-Araghi, David R. Zornes, James H. Hedges, Everett L. Johnston, Faye L. Scully | 2015-09-22 |
| 8691736 | Swellable polymer with cationic sites | Ahmad Moradi-Araghi, James H. Hedges, David R. Zornes, Huili Guan, Jenn-Tai Liang +4 more | 2014-04-08 |
| 8669214 | Swellable polymer with anionic sites | Ahmad Moradi-Araghi, James H. Hedges, David R. Zornes, Huili Guan, Jenn-Tai Liang +4 more | 2014-03-11 |
| 8648018 | Crosslinked swellable polymer | Ahmad Moradi-Araghi, David R. Zornes, James H. Hedges, Everett L. Johnston, Faye L. Scully | 2014-02-11 |
| 8607867 | Oil recovery process | Partha S. Sarathi, Robert S. Redman | 2013-12-17 |
| 8444887 | Methods and systems for conversion of molten sulfur to powder sulfur | Michael E. Vienot, Lee Chin | 2013-05-21 |
| 8389446 | Swellable polymers with hydrophobic groups | Ahmad Moradi-Araghi, James H. Hedges, David R. Zornes, Huili Guan, Jenn-Tai Liang +4 more | 2013-03-05 |
| 8353340 | In situ combustion with multiple staged producers | Partha S. Sarathi, Wayne R. Dreher, Abhishek Dutta | 2013-01-15 |
| 8079417 | Wireline retrievable dsg/downhole pump system for cyclic steam and continuous steam flooding operations in petroleum reservoirs | Dennis C. Wegener, David R. Zornes, Partha S. Sarathi | 2011-12-20 |
| 4630678 | In-situ formation of polyvalent metal ions for crosslinking polymers within carbonate rock-containing reservoirs | Naim A. Mumallah, Donald D. Bruning | 1986-12-23 |
| 4580504 | Method and apparatus for the recovery of hydrocarbons | David H. Beardmore | 1986-04-08 |
| 4515093 | Method and apparatus for the recovery of hydrocarbons | David H. Beardmore | 1985-05-07 |
| 4231428 | Well treatment method | Charles Thomas, Donald R. Wier | 1980-11-04 |
| 4187910 | CO.sub.2 removal from hydrocarbon gas in water bearing underground reservoir | Archie J. Cornelius | 1980-02-12 |