Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5423950 | Method and reactor for producing tire oil | Vahan Avetisian, Constantin Bugescu, Craig J. Castagnoli, Suk-Bae Cha, Kenneth Scott Lee +1 more | 1995-06-13 |
| 4453769 | In situ oil shale retort having horizontal voids with side pillars | Thomas E. Ricketts | 1984-06-12 |
| 4315657 | Gas seal for an in situ oil shale retort and method of forming thermal barrier | — | 1982-02-16 |
| 4301866 | Method and apparatus for igniting an in situ oil shale retort | Sten I. Rundberg, James V. Vaughn, Thomas P. Williams, Gregory C. Benson | 1981-11-24 |
| 4249602 | Method of doping retort with a halogen source to determine the locus of a processing zone | Carlon C. Chambers | 1981-02-10 |
| 4200336 | Means for providing gas seal in production level drift for in situ oil shale retort | — | 1980-04-29 |
| 4181361 | Gas collection system for oil shale retort | Richard D. Ridley | 1980-01-01 |
| 4181362 | Liquid seal for production level bulkhead for in situ oil shale retort | — | 1980-01-01 |