Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365104 | Para-selective zeolite catalysts treated with sulfur compounds | — | 1982-12-21 |
| 4361713 | Para-selective zeolite catalysts treated with halogen compounds | — | 1982-11-30 |
| 4349461 | Group VIIA metal-modified zeolite catalysts | Chin-Chiun Chu | 1982-09-14 |