Issued Patents 2004
Showing 1–4 of 4 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, Charles Robert Keedy, Fredrick Gordon Carl, Jr. | 2004-09-14 |
| 6769483 | In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources | Eric Pierre de Rouffignac, Harold J. Vinegar, John Michael Karanikas, James Louis Menotti, John Matthew Coles +2 more | 2004-08-03 |
| 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 |
| 6742593 | In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation | Harold J. Vinegar, Eric Pierre de Rouffignac | 2004-06-01 |