Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021168 | Process for the preparation and recovery of oxydiphthalic anhydrides | John R. Molinaro, Willis T. Schwartz | 1991-06-04 |
| 4870194 | Process for the preparation and recovery of oxdiphthalic anhydrides | John R. Molinaro, Willis T. Schwartz | 1989-09-26 |
| 4709056 | 4,4-dihalohexahydrophthalic anhydrides and 4-fluorotetrahydrophthalic anhydride, and process for their preparation | Byron R. Cotter, Henry Lin | 1987-11-24 |
| 4697023 | Process for the preparation of oxy-diphthalic anhydrides | Willis T. Schwartz | 1987-09-29 |
| 4680371 | Preparation of aromatic polyester with improved stability by addition of phosphite during preparation | Jerold C. Rosenfeld | 1987-07-14 |
| 4359590 | Titanate ester-stabilized bisphenols | Norman W. Dachs, James W. Ginter | 1982-11-16 |