Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743358 | Method for suppressing the harmful effects of metal contaminants on hydrocarbon conversion catalysts using a strontium colloid system | Edwin L. Kugler | 1988-05-10 |
| 4605752 | Quaternary ammonium tetrathiovanadates | Thomas R. Halbert | 1986-08-12 |
| 4493763 | Pretreatment of oil-shale for enhanced arsenic removal | Frank Hershkowitz | 1985-01-15 |
| 4469584 | Process for pyrolyzing oil-shale | Frank Hershkowitz, William N. Olmstead | 1984-09-04 |
| 4468314 | Hydropyrolysis of carbonaceous material | Kenneth D. Rose | 1984-08-28 |
| 4439305 | Process for pyrolysis of carbonous materials | — | 1984-03-27 |
| 4255159 | Polymer combinations useful in fuel oil to improve cold flow properties | Harold N. Miller, Max J. Wisotsky | 1981-03-10 |