Issued Patents All Time
Showing 26–50 of 307 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8240774 | Solution mining and in situ treatment of nahcolite beds | — | 2012-08-14 |
| 8238730 | High voltage temperature limited heaters | Chester Ledlie Sandberg, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. | 2012-08-07 |
| 8233782 | Grouped exposed metal heaters | William George Coit, Peter Terry Griffin, Paul Taylor Hamilton, Chia-Fu Hsu, Stanley Leroy Mason +2 more | 2012-07-31 |
| 8225866 | In situ recovery from a hydrocarbon containing formation | Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr. +3 more | 2012-07-24 |
| 8224165 | Temperature limited heater utilizing non-ferromagnetic conductor | Christopher Harris | 2012-07-17 |
| 8224164 | Insulated conductor temperature limited heaters | Chester Ledlie Sandberg, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. | 2012-07-17 |
| 8224163 | Variable frequency temperature limited heaters | Chester Ledlie Sandberg, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. | 2012-07-17 |
| 8220539 | Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation | Scott Vinh Nguyen | 2012-07-17 |
| 8200072 | Temperature limited heaters for heating subsurface formations or wellbores | Chester Ledlie Sandberg, Christopher Harris, Jaime Santos Son, James Louis Menotti, Fredrick Gordon Carl, Jr. | 2012-06-12 |
| 8192682 | High strength alloys | Phillip James Maziasz, John Paul Shingledecker, Michael L. Santella, Joachim Hugo Schneibel, Vinod K. Sikka +2 more | 2012-06-05 |
| 8146661 | Cryogenic treatment of gas | Jose Luis Bravo, Albert Destrehan Harvey, III | 2012-04-03 |
| 8113272 | Three-phase heaters with common overburden sections for heating subsurface formations | — | 2012-02-14 |
| 8027571 | In situ conversion process systems utilizing wellbores in at least two regions of a formation | Chia-Fu Hsu | 2011-09-27 |
| 7986869 | Varying properties along lengths of temperature limited heaters | Xueying Xie, David Scott Miller, Jean-Charles Ginestra | 2011-07-26 |
| 7942203 | Thermal processes for subsurface formations | Mark Gregory Picha, Lanny Gene Schoeling | 2011-05-17 |
| 7931086 | Heating systems for heating subsurface formations | Scott Vinh Nguyen | 2011-04-26 |
| 7860377 | Subsurface connection methods for subsurface heaters | Ronald Marshall Bass, Dong Sub Kim, Stanley Leroy Mason, George Leo Stegemeier, Thomas Joseph Keltner +1 more | 2010-12-28 |
| 7849922 | In situ recovery from residually heated sections in a hydrocarbon containing formation | John Michael Karanikas, Robert Charles Ryan | 2010-12-14 |
| 7845411 | In situ heat treatment process utilizing a closed loop heating system | Scott Vinh Nguyen | 2010-12-07 |
| 7841401 | Gas injection to inhibit migration during an in situ heat treatment process | Myron I. Kuhlman, Ralph S. Baker, Goren Heron | 2010-11-30 |
| 7841408 | In situ heat treatment from multiple layers of a tar sands formation | — | 2010-11-30 |
| 7832484 | Molten salt as a heat transfer fluid for heating a subsurface formation | Scott Vinh Nguyen | 2010-11-16 |
| 7831134 | Grouped exposed metal heaters | William George Coit, Peter Terry Griffin, Paul Taylor Hamilton, Chia-Fu Hsu, Stanley Leroy Mason +2 more | 2010-11-09 |
| 7831133 | Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration | Chester Ledlie Sandberg | 2010-11-09 |
| 7798220 | In situ heat treatment of a tar sands formation after drive process treatment | John Andrew Stanecki | 2010-09-21 |