Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873324 | Process for chiral synthesis of 1-beta-methyl-carbapenem intermediates | Lovji D. Cama, Susan M. Schmitt | 1989-10-10 |
| 4839352 | N-acyl derivatives of thienamycin | Louis Barash, John Hannah, William J. Leanza, David H. Shih | 1989-06-13 |
| 4833167 | 2-aza-substituted 1-carbadethiapen-2-em-3-carboxylic acids | John C. Chabala, Ronald W. Ratcliffe | 1989-05-23 |
| 4820817 | Process for preparing 3-substituted-6-substituted-7-oxo-1-azabicycl(3.2.0)-hept-2-ene-2-carbox ylic acid | Ronald W. Ratcliffe | 1989-04-11 |
| 4806527 | Avermectin derivatives | Helmut Mrozik, Michael H. Fisher | 1989-02-21 |