Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362694 | Sulfur dioxide regeneration of superacid catalyst | Chao-Yang Hsu | 1994-11-08 |
| 5321197 | Processes using solid-acid catalyst composition | Howard P. Angstadt, Chao-Yang Hsu | 1994-06-14 |
| 5310868 | Processes using solid-acid catalyst compositions | Howard P. Angstadt, Chao-Yang Hsu | 1994-05-10 |