Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845121 | Aci-reductone compounds belonging to the 6,7-disubstituted-3,4-dihydro benzopyan-2H-one class having antiaggregatory properties | Donald T. Witiak, Dennis R. Feller, Karl J. Romstedt | 1989-07-04 |
| 4835267 | Process for the preparation of cephalosporin derivatives | Moon-Hwan Chang, Bong-Jin Kim, Woan J. Kim | 1989-05-30 |