Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847271 | Antihypercholesterolemic .beta.-lactones | Yuan-Ching P. Chiang, Michael N. Chang, Narindar M. Girotra, Donald W. Graham, Shu S. Yang | 1989-07-11 |
| 4833167 | 2-aza-substituted 1-carbadethiapen-2-em-3-carboxylic acids | Burton G. Christensen, Ronald W. Ratcliffe | 1989-05-23 |
| 4806564 | Antihypercholesterolemic beta-lactones | Yuan-Ching P. Chiang, Michael N. Chang, Donald W. Graham, James V. Heck, Shu S. Yang | 1989-02-21 |