Issued Patents All Time
Showing 26–50 of 126 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4745188 | Process for preparing 3-substituted-6-substituted-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carbox ylic acid | Ronald W. Ratcliffe | 1988-05-17 |
| 4739048 | Process for the preparation of thienamycin and intermediates | Ronald W. Ratcliffe, Thomas N. Salzmann | 1988-04-19 |
| 4736025 | Process for the preparation of thienamycin and intermediates | Ronald W. Ratcliffe, Thomas N. Salzmann | 1988-04-05 |
| 4734497 | Intermediates for process for chiral synthesis of 1-.beta.-methyl-carbapenem intermediates | Lovji D. Cama, Susan M. Schmitt | 1988-03-29 |
| 4729993 | Carbapenems and 1-methylcarbapenems having an externally alkylated mono- or bicyclic 2-quaternary heteroarylalkyl substituent | Ronald W. Ratcliffe, James V. Heck, Thomas N. Salzmann, David H. Shih | 1988-03-08 |
| 4725594 | Carbapenems having an internally or externally alkylated mono- or bicyclic 2-quaternary heteroarylalxyl heteromethyl substituent | James V. Heck, Ronald W. Ratcliffe, Thomas N. Salzmann | 1988-02-16 |
| 4707547 | Process for preparing carbapenem compounds | Ronald W. Ratcliffe | 1987-11-17 |
| 4696923 | 6-[1-hydroxyethyl]-2-SR.sup.8 -1-methyl-1-carbadethiapen-2-em-3-carboxylic acids | David H. Shih | 1987-09-29 |
| 4695565 | Antibacterial 7.beta.-heterocyclic-cephem | John Hannah | 1987-09-22 |
| 4680292 | Carbapenems and 1-methylcarbapenems having a 2-heteroaryliumaliphatic substituent | Thomas N. Salzmann, James V. Heck | 1987-07-14 |
| 4654331 | Oral absorption enhancement of carboxylic acid pharmaceuticals using (5-alkyl-2-oxo-1,3-dioxolen-4-yl)methyl ester group | — | 1987-03-31 |
| 4650794 | 6-(1-hydroxyethyl)-2-carbamimidoyl-pen-2-em-3-carboxylic acids | Frank P. DiNinno, William J. Leanza, Ronald W. Ratcliffe | 1987-03-17 |
| 4645769 | 1-oxa-1-dethia-cephalosporin compounds and antibacterial agent comprising the same | Seiji Shibahara, Tsuneo Okonogy, Yasushi Murai, Shunzo Fukatsu, Taro Niida +1 more | 1987-02-24 |
| 4617152 | .beta.-lactams containing an .alpha.-exocyclic double bond | Lovji D. Cama, Susan M. Schmitt | 1986-10-14 |
| 4610820 | Process for the preparation of thienamycin and intermediates | Ronald W. Ratcliffe, Thomas N. Salzmann | 1986-09-09 |
| 4600713 | 1-, 6- and 2-substituted-1-carba-2-penem-3-carboxylic acids | David H. Shih | 1986-07-15 |
| 4595750 | Process for chiral synthesis of 1-.beta.-methylcarbapenem intermediates | Lovji D. Cama, Susan M. Schmitt | 1986-06-17 |
| 4582643 | 6-(1-hydroxyethyl)-2-(2-amin oethylthio)-1,1-disubstituted-1-carbadethiapen-2-em-3-carboxylic acids | David H. Shih | 1986-04-15 |
| 4565808 | 3-Phosphonate carbapenems | W. Alexander Andrus, James V. Heck | 1986-01-21 |
| 4544557 | 6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-3-tetrazoly-1-carbadethiapen-2-em | W. Alexander Andrus, James V. Heck | 1985-10-01 |
| 4543257 | 1-Carba-2-penem-3-carboxylic acid | Lovji D. Cama | 1985-09-24 |
| 4534898 | 1-Oxa-1-dethia-cephalosporin derivatives | Seiji Shibahara, Tsuneo Okonogi, Yasushi Murai, Shunzo Fukatsu, Tadashi Wakazawa +1 more | 1985-08-13 |
| 4530841 | 6- And 6,6-disubstituted-3-substituted amino-1-azabicyclo-[3.2.0]hept-2-en-7-one-2-carboxylic acid | Ronald W. Ratcliffe | 1985-07-23 |
| 4479947 | Oral absorption enhancement of carboxylic acid pharmaceuticals using (5-alkyl-2-oxo-1,3-dioxolen-4-yl)methyl ester group | — | 1984-10-30 |
| 4465632 | Process for preparing 1-6-and 2-substituted-1-carba-2-penem-3-carboxylic acids | David H. Shih | 1984-08-14 |