| 10508523 |
Using liquefied petroleum gas in a hot circulating fluid heater for in-situ oil shale retorting |
Alan K. Burnham |
2019-12-17 |
| 9464513 |
System for providing uniform heating to subterranean formation for recovery of mineral deposits |
Leonard H. Switzer, Alan K. Burnham, Roger L. Day |
2016-10-11 |
| 9127541 |
Heater and method for recovering hydrocarbons from underground deposits |
Alan K. Burnham, P. Henrik Wallman, Roger L. Day |
2015-09-08 |
| 8464792 |
Conduction convection reflux retorting process |
Alan K. Burnham, Roger L. Day, P. Henrick Wallman |
2013-06-18 |
| 8162043 |
In situ method and system for extraction of oil from shale |
Alan K. Burnham, Roger L. Day, P. Henrick Wallman |
2012-04-24 |
| 7921907 |
In situ method and system for extraction of oil from shale |
Alan K. Burnham, Roger L. Day, P. Henrick Wallman, Harry Gordon Harris, Paul Lerwick +1 more |
2011-04-12 |
| 6582588 |
High temperature, low oxidation stabilization of pitch fibers |
Andrea Zimmerman, John A. Rodgers, H. Ernest Romine, Lorita Davis |
2003-06-24 |
| 6270652 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
H. Ernest Romine, John A. Rodgers |
2001-08-07 |
| 6123829 |
High temperature, low oxidation stabilization of pitch fibers |
Andrea Zimmerman, John A. Rodgers, H. Ernest Romine, Lorita Davis |
2000-09-26 |
| 5932186 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
H. Ernest Romine, John A. Rodgers |
1999-08-03 |
| 5720871 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
H. Ernest Romine, John A. Rodgers |
1998-02-24 |
| 5032250 |
Process for isolating mesophase pitch |
Hugh E. Romine |
1991-07-16 |
| 4718984 |
Apparatus for calcining coke |
Charles J. Swartz |
1988-01-12 |
| 4698147 |
Short residence time hydrogen donor diluent cracking process |
— |
1987-10-06 |
| 4604185 |
Co-processing of straight run vacuum resid and cracked residua |
Ardis L. Anderson |
1986-08-05 |
| 4601812 |
Oil shale retorting process |
Ardis L. Anderson |
1986-07-22 |
| 4347120 |
Upgrading of heavy hydrocarbons |
Ardis L. Anderson |
1982-08-31 |
| 4332641 |
Process for producing calcined coke and rich synthesis gas |
Ardis L. Anderson |
1982-06-01 |
| 4235703 |
Method for producing premium coke from residual oil |
William H. Kegler |
1980-11-25 |