| 8238730 |
High voltage temperature limited heaters |
Chester Ledlie Sandberg, Harold J. Vinegar, Christopher Harris, Jaime Santos Son |
2012-08-07 |
| 8224163 |
Variable frequency temperature limited heaters |
Chester Ledlie Sandberg, Harold J. Vinegar, Christopher Harris, Jaime Santos Son |
2012-07-17 |
| 8224164 |
Insulated conductor temperature limited heaters |
Chester Ledlie Sandberg, Harold J. Vinegar, Christopher Harris, Jaime Santos Son |
2012-07-17 |
| 8200072 |
Temperature limited heaters for heating subsurface formations or wellbores |
Harold J. Vinegar, Chester Ledlie Sandberg, Christopher Harris, Jaime Santos Son, James Louis Menotti |
2012-06-12 |
| 7121342 |
Thermal processes for subsurface formations |
Harold J. Vinegar, Peter Veenstra, Steven Paul Giles, Chester Ledlie Sandberg, Frederick Henry Kreisler Rambow +9 more |
2006-10-17 |
| 7121341 |
Conductor-in-conduit temperature limited heaters |
Harold J. Vinegar, Chester Ledlie Sandberg, Christopher Harris, Jaime Santos Son |
2006-10-17 |
| 7004247 |
Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation |
Anthony Thomas Cole, Lawrence James Bielamowicz, John Matthew Coles, Eric Pierre de Rouffignac, Bruce Gerard Hunsucker +5 more |
2006-02-28 |
| 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, Bruce Gerard Hunsucker |
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 |
