Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835319 | Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with a zeolite catalyst | Enio Kumpinsky, Antonio Vidal | 1989-05-30 |
| 4814303 | Anorthite-cordierite based ceramics from zeolites | Uma Chowdhry, Munirpallam A. Subramanian | 1989-03-21 |
| 4814503 | Zeolite rho and ZK-5 catalysts for conversion of methanol and ammonia to dimethylamine | Lloyd Abrams, Robert D. Shannon | 1989-03-21 |
| 4806689 | Zeolite Rho as catalyst for conversion of methanol and ammonia to dimethylamine | Thurman E. Gier, Robert D. Shannon, George C. Sonnichsen, Michael Keane | 1989-02-21 |