Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227552 | Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst | Clarence D. Chang, Stuart D. Hellring | 1993-07-13 |
| 5219546 | Synthesis of crystalline mordenite-type material | Stuart D. Hellring | 1993-06-15 |
| 5219547 | Synthesis of crystalline mordenite-type material | Stuart D. Hellring | 1993-06-15 |
| 5211935 | Synthesis of crystalline mordenite-type material | Clarence D. Chang, Stuart D. Hellring | 1993-05-18 |
| 5209918 | Synthesis of crystalline ZSM-5-type material | Stuart D. Hellring | 1993-05-11 |
| 5174980 | Synthesis of crystalline ZSM-35 | Stuart D. Hellring | 1992-12-29 |
| 5174977 | Synthesis of crystalline ZSM-5-type material | Clarence D. Chang, Stuart D. Hellring | 1992-12-29 |
| 5174978 | Synthesis of crystalline ZSM-5-type material | Stuart D. Hellring | 1992-12-29 |
| 5174981 | Synthesis of crystalline ZSM-5-type material | Stuart D. Hellring | 1992-12-29 |
| 5173282 | Synthesis of crystalline mordenite-type material | Stuart D. Hellring | 1992-12-22 |
| 4671964 | Upgrading of low quality green coffee | Reghina Davidescu, Roger E. Hawks | 1987-06-09 |