Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835319 | Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with a zeolite catalyst | David Richard Corbin, Enio Kumpinsky | 1989-05-30 |
| 4827041 | Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with a perfluorosulfonyl resin catalyst | Thomas M. Ford, Enio Kumpinsky | 1989-05-02 |