Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5382371 | Polymers useful in the recovery and processing of natural resources | G. Allan Stahl, Ahmad Moradi-Araghi, I. John Westerman, Henry L. Hsieh, James H. Hedges | 1995-01-17 |
| 5186257 | Polymers useful in the recovery and processing of natural resources | Allan Stahl, Ahmad Moradi-Araghi, John Westerman, Henry L. Hsieh, James H. Hedges | 1993-02-16 |
| 5086030 | Gamma-butyrolactone production catalyst | Joel Stark | 1992-02-04 |
| 5080809 | Polymers useful in the recovery and processing of natural resources | G. Allan Stahl, I. John Westerman, Henry L. Hsieh, Ahmad Moradi-Araghi, James H. Hedges | 1992-01-14 |
| 4968818 | Gamma-butyrolactone production process and catalyst therefor | Joel Stark | 1990-11-06 |
| 4693991 | Hydrotreating catalyst composition | Douglas D. Klendworth, Lloyd E. Gardner, Floyd E. Farha, Jr. | 1987-09-15 |
| 4655906 | Hydrotreating process employing a novel catalytic composition | Douglas D. Klendworth, Lloyd E. Gardner, Floyd E. Farha, Jr. | 1987-04-07 |
| 4331566 | Catalyst for hydrodealkylation process | — | 1982-05-25 |
| 4304943 | Conversion of alkyl and aryl hydroxy compounds producing aldehyde, alcohol and ketone using manganese oxide/nickel oxide/magnesium oxide catalysts | — | 1981-12-08 |
| 4258221 | Cleavage of alkylenebisphenols | Ronald D. Knudsen | 1981-03-24 |
| 4258268 | Polycyclic phenols, alcohols and ketones from phenols, cyclic alcohols and cyclic ketones using a nickel oxide/manganese oxide/magnesium oxide catalyst in presence of at least one of hydrogen and nitrogen | — | 1981-03-24 |
| 4205017 | Hydrodehydroxylation process using a rhenium-fluorided alumina catalyst | — | 1980-05-27 |
| 4191844 | Hydrodealkylation process and catalyst | — | 1980-03-04 |
| 4189613 | Hydrodealkylation process | — | 1980-02-19 |