Issued Patents All Time
Showing 251–275 of 307 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6094048 | NMR logging of natural gas reservoirs | Ridvan Akkurt, Pierre N. Tutunjian | 2000-07-25 |
| 6079499 | Heater well method and apparatus | Thomas Mikus, Scott Lee Wellington, John Michael Karanikas | 2000-06-27 |
| 6056057 | Heater well method and apparatus | Thomas Mikus, John Michael Karanikas, Scott Lee Wellington | 2000-05-02 |
| 6023554 | Electrical heater | Eric Pierre de Rouffignac | 2000-02-08 |
| 6019172 | Flameless combustor | Scott Lee Wellington, Thomas Mikus, John Michael Karanikas | 2000-02-01 |
| 5997214 | Remediation method | Eric Pierre de Rouffignac | 1999-12-07 |
| 5899269 | Flameless combustor | Scott Lee Wellington, Thomas Mikus, John Michael Karanikas | 1999-05-04 |
| 5862858 | Flameless combustor | Scott Lee Wellington, Thomas Mikus, John Michael Karanikas | 1999-01-26 |
| 5656239 | Method for recovering contaminants from soil utilizing electrical heating | George Leo Stegemeier | 1997-08-12 |
| 5553189 | Radiant plate heater for treatment of contaminated surfaces | George Leo Stegemeier, Frederick Gordon Carl, Jr. | 1996-09-03 |
| 5498960 | NMR logging of natural gas in reservoirs | Ridvan Akkurt, Pierre N. Tutunjian | 1996-03-12 |
| 5497087 | NMR logging of natural gas reservoirs | Ridvan Akkurt, Pierre N. Tutunjian | 1996-03-05 |
| 5433271 | Heat injection process | Eric Pierre de Rouffignac, Lawrence James Bielamowicz, Phillip Temmons Baxley | 1995-07-18 |
| 5411089 | Heat injection process | Eric Pierre de Rouffignac, Lawrence James Bielamowicz, Phillip Temmons Baxley, Scott Lee Wellington | 1995-05-02 |
| 5409071 | Method to cement a wellbore | Scott Lee Wellington, Thomas C. Gipson | 1995-04-25 |
| 5404952 | Heat injection process and apparatus | Thomas Mikus, Carlos A. Glandt, John Michael Karanikas, Eric Pierre de Rouffignac | 1995-04-11 |
| 5392854 | Oil recovery process | Eric Pierre de Rouffignac, Carlos A. Glandt, Thomas Mikus, Mark A. Beckemeier | 1995-02-28 |
| 5318116 | Vacuum method for removing soil contaminants utilizing thermal conduction heating | George Leo Stegemeier, Eric Pierre de Rouffignac, Charles C. Chou | 1994-06-07 |
| 5306640 | Method for determining preselected properties of a crude oil | Pierre N. Tutunjian | 1994-04-26 |
| 5297626 | Oil recovery process | Eric P. DeRouffignac, Carlos A. Glandt, Thomas Mikus, Mark A. Beckemeier | 1994-03-29 |
| 5236039 | Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale | William A. Edelstein, Chia-Fu Hsu, Otward M. Mueller | 1993-08-17 |
| 5229583 | Surface heating blanket for soil remediation | Cornelis F. Van Egmond, Frederick Gordon Carl, Jr., George Leo Stegemeier | 1993-07-20 |
| 5226961 | High temperature wellbore cement slurry | James J. W. Nahm, John Michael Karanikas, Reece E. Wyant | 1993-07-13 |
| 5190405 | Vacuum method for removing soil contaminants utilizing thermal conduction heating | George L. Stegmeier, Eric Pierre de Rouffignac, Charles C. Chou | 1993-03-02 |
| 5060726 | Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication | Carlos A. Glandt, John W. Gardner | 1991-10-29 |