Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4310538 | 3-Halo-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acid | Burton G. Christensen | 1982-01-12 |
| 4309346 | Process for the preparation of 1-carbapenems and intermediates via trithioorthoacetates | Burton G. Christensen, Thomas N. Salzmann | 1982-01-05 |
| 4298741 | 6-Amido-3-substituted-1-azabicyclo[3.2.0]-hept-2-en-7-one-2-carboxylic acid | Burton G. Christensen, Ravindra N. Guthikonda | 1981-11-03 |
| 4290947 | Process for the preparation of thienamycin and intermediates | Burton G. Christensen, Thomas N. Salzman | 1981-09-22 |
| 4275207 | Process for preparing 7-(1-hydroxyethyl)-3-(2-aminoethylthio)-1-carbadethiaceph-3-em-3-carboxy lic acid and intermediate therefor | Thomas N. Salzmann | 1981-06-23 |
| 4273709 | Process for the preparation of thienamycin and intermediates | Burton G. Christensen, Thomas N. Salzmann | 1981-06-16 |
| 4258040 | Cephalosporin compounds | Burton G. Christensen | 1981-03-24 |
| 4235922 | 3-(2-Aminoethylthio)-6-ethyl-7-oxo-1-azabicyclo [3.2.0]hept-2-ene-2-carboxylic acid | Linda J. Ruswinkle | 1980-11-25 |
| 4226866 | Novel antibiotic analogues of cephalosporins | Burton G. Christensen | 1980-10-07 |
| 4226870 | O-, N- and carboxyl derivatives of thienamycin | Burton G. Christensen, John Hannah, William J. Leanza, David H. Shih | 1980-10-07 |
| 4217453 | 6-Amido-3-substitu ted-amino-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acid | Burton G. Christensen, Ravindra N. Guthikonda | 1980-08-12 |
| 4212807 | Process for deacylating N-acyl-6-substituted-2-[2-aminoethylthio]-1-carbadethiapen-2-em-3-carbox ylic acids | — | 1980-07-15 |
| 4211707 | Process for hydrolytically cleaving O-sulfo thienamycins | — | 1980-07-08 |