Issued Patents All Time
Showing 25 most recent of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8789586 | In situ recovery from a hydrocarbon containing formation | Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier +3 more | 2014-07-29 |
| 8485252 | In situ recovery from a hydrocarbon containing formation | Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier +3 more | 2013-07-16 |
| 8225866 | In situ recovery from a hydrocarbon containing formation | Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier +3 more | 2012-07-24 |
| 7798221 | In situ recovery from a hydrocarbon containing formation | Harold J. Vinegar, Scott Lee Wellington, Eric Pierre de Rouffignac, John Michael Karanikas, George Leo Stegemeier +12 more | 2010-09-21 |
| 7225866 | In situ thermal processing of an oil shale formation using a pattern of heat sources | Eric Pierre de Rouffignac, Thomas David Fowler, John Michael Karanikas, Robert Charles Ryan, Gordon Thomas Shahin, Jr. +4 more | 2007-06-05 |
| 7114561 | Wireless communication using well casing | Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr. | 2006-10-03 |
| 7104319 | In situ thermal processing of a heavy oil diatomite formation | Harold J. Vinegar, Eric Pierre de Rouffignac, John Michael Karanikas, Kevin Albert Maher, George Leo Stegemeier +2 more | 2006-09-12 |
| 7096942 | In situ thermal processing of a relatively permeable formation while controlling pressure | Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier +3 more | 2006-08-29 |
| 7096941 | In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer | Eric Pierre de Rouffignac, Harold J. Vinegar, John Michael Karanikas, George Leo Stegemeier, Kevin Albert Maher +4 more | 2006-08-29 |
| 7096953 | In situ thermal processing of a coal formation using a movable heating element | Eric Pierre de Rouffignac, Harold J. Vinegar, Scott Lee Wellington, John Michael Karanikas, George Leo Stegemeier +3 more | 2006-08-29 |
| 7086468 | In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores | Eric Pierre de Rouffignac, Harold J. Vinegar, Scott Lee Wellington, John Michael Karanikas, Etuan Zhang +4 more | 2006-08-08 |
| 7077199 | In situ thermal processing of an oil reservoir formation | Harold J. Vinegar, Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Scott Lee Wellington +1 more | 2006-07-18 |
| 7051811 | In situ thermal processing through an open wellbore in an oil shale formation | Eric Pierre de Rouffignac, Thomas David Fowler, Bruce Gerard Hunsucker, John Michael Karanikas, Charles Robert Keedy +4 more | 2006-05-30 |
| 7051808 | Seismic monitoring of in situ conversion in a hydrocarbon containing formation | Harold J. Vinegar, David C. DeMartini | 2006-05-30 |
| 7040399 | In situ thermal processing of an oil shale formation using a controlled heating rate | Scott Lee Wellington, Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr. +3 more | 2006-05-09 |
| 7040398 | In situ thermal processing of a relatively permeable formation in a reducing environment | Scott Lee Wellington, Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr. +3 more | 2006-05-09 |
| 7040397 | Thermal processing of an oil shale formation to increase permeability of the formation | Eric Pierre de Rouffignac, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier +3 more | 2006-05-09 |
| 7040400 | In situ thermal processing of a relatively impermeable formation using an open wellbore | Eric Pierre de Rouffignac, Thomas David Fowler, Bruce Gerard Hunsucker, John Michael Karanikas, Charles Robert Keedy +4 more | 2006-05-09 |
| 7036583 | In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation | Eric Pierre de Rouffignac, Harold J. Vinegar, Scott Lee Wellington, George Leo Stegemeier, Etuan Zhang +3 more | 2006-05-02 |
| 7017661 | Production of synthesis gas from a coal formation | Harold J. Vinegar, Scott Lee Wellington, Eric Pierre de Rouffignac, John Michael Karanikas, George Leo Stegemeier +5 more | 2006-03-28 |
| 7011154 | In situ recovery from a kerogen and liquid hydrocarbon containing formation | Kevin Albert Maher, Eric Pierre de Rouffignac, John Michael Karanikas, Harold J. Vinegar, Scott Lee Wellington +1 more | 2006-03-14 |
| 6994169 | In situ thermal processing of an oil shale formation with a selected property | Etuan Zhang, Eric Pierre de Rouffignac, Thomas David Fowler, Kevin Albert Maher, Robert Charles Ryan +4 more | 2006-02-07 |
| 6994168 | In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio | Scott Lee Wellington, Harold J. Vinegar, Eric Pierre de Rouffignac, George Leo Stegemeier, Kevin Albert Maher +4 more | 2006-02-07 |
| 6994161 | In situ thermal processing of a coal formation with a selected moisture content | Kevin Albert Maher, Harold J. Vinegar, Scott Lee Wellington, Eric Pierre de Rouffignac, John Michael Karanikas +4 more | 2006-02-07 |
| 6994160 | In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range | Scott Lee Wellington, Harold J. Vinegar, Eric Pierre de Rouffignac, George Leo Stegemeier, Etuan Zhang +3 more | 2006-02-07 |