Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789625 | In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources | Eric Pierre de Rouffignac, Harold J. Vinegar, Bruce Gerard Hunsucker, Fredrick Gordon Carl, Jr. | 2004-09-14 |
| 6752210 | In situ thermal processing of a coal formation using heat sources positioned within open wellbores | Eric Pierre de Rouffignac, Harold J. Vinegar, Scott Lee Wellington, John Michael Karanikas, Ilya Emil Berchenko +5 more | 2004-06-22 |