Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5781291 | Smoke detectors utilizing a hydrophilic substance | George A. Shoenfelder, Juliette C. Daly | 1998-07-14 |
| 5312543 | Resid hydrotreating using solvent extraction and deep vacuum reduction | James L. Taylor, William I. Beaton, Jeffrey John Kolstad | 1994-05-17 |
| 5192422 | Oil shale beneficiation process using a spiral separator | — | 1993-03-09 |
| 5091076 | Acid treatment of kerogen-agglomerated oil shale | Terry L. Marker, Gene E. Tampa | 1992-02-25 |
| 5000389 | Kerogen agglomeration process for oil shale beneficiation | Terry L. Marker | 1991-03-19 |
| 4963250 | Kerogen agglomeration process for oil shale beneficiation using organic liquid in precommunication step | Terry L. Marker | 1990-10-16 |