Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4982030 | Process for preparation of para-divinylbenzene | John M. Klosek, Philip J. Yannich, Jr., Lewis B. Young | 1991-01-01 |
| 4975401 | ZSM-5/ZSM-12 catalyst mixture for cracking alkylbenzenes | Carol S. Lee | 1990-12-04 |
| 4929791 | Catalytic conversion of propane to ethylene over ZSM-50 | — | 1990-05-29 |
| 4929790 | Catalytic conversion of propane to ethylene over ZSM-23 | Ernest W. Valyocsik | 1990-05-29 |
| 4849573 | Process for manufacturing light olefins | — | 1989-07-18 |
| 4593136 | ZSM-5/ZSM-12 catalyst mixture for cracking alkylbenzenes | Carol S. Lee | 1986-06-03 |
| 4584422 | Selective alkylation of xylenes with ethylene | George C. Barile | 1986-04-22 |
| 4581215 | Para-selective zeolite catalysts treated with halogen compounds | — | 1986-04-08 |
| 4577050 | ZSM-5/ZSM-12 Catalyst mixture for cracking alkylbenzenes | Carol S. Lee | 1986-03-18 |
| 4554394 | Organophosphorus-treated zeolite catalysts for para-selective aromatics conversion | Nancy P. Forbus | 1985-11-19 |
| 4504690 | Organophosphorus-treated zeolite catalysts for para-selective aromatics conversion | Nancy P. Forbus | 1985-03-12 |
| 4486616 | Rejuvenation of deselectivated alkylation catalyst | Chin-Chiun Chu | 1984-12-04 |
| 4478949 | Para-selective zeolite catalysts treated with sulfur compounds | — | 1984-10-23 |
| 4477585 | Para-selective zeolite catalysts treated with carbon dioxide | — | 1984-10-16 |
| 4477584 | Para-selective zeolite catalysts treated with nitrogen compounds | — | 1984-10-16 |
| 4469806 | Organophosphorus-treated zeolite catalysts for para-selective aromatics conversion | Nancy P. Forbus | 1984-09-04 |
| 4409132 | Organophosphorus-treated zeolite catalysts for para-selective aromatics conversion | Nancy P. Forbus | 1983-10-11 |
| 4394300 | Zeolite catalyst modified with group IVB metal | Chin-Chiun Chu | 1983-07-19 |
| 4393262 | Production of isopropylbenzene | — | 1983-07-12 |
| 4370508 | Para-selective zeolite catalysts treated with nitrogen compounds | — | 1983-01-25 |
| 4367359 | Para-selective zeolite catalysts treated with carbon dioxide | — | 1983-01-04 |
| 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 |
| 4291185 | Alkylation of benzene in petroleum | — | 1981-09-22 |