Issued Patents All Time
Showing 51–75 of 126 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4447602 | Process to prepare 7-substituted cephalosporins or 6-substituted penicillins | Raymond A. Firestone, Lovji D. Cama | 1984-05-08 |
| 4424230 | 6-(1'-Hydroxyethyl)-3-substituted amino-1-azabicyclo-3.2.0!hept-2-en-7-one-2-carboxylic acid | Ronald W. Ratcliffe | 1984-01-03 |
| 4400323 | 3-[1-Hydroxyethyl]-4-carboxymethyl-azetidin-2-one | Ronald W. Ratcliffe, Thomas N. Salzmann | 1983-08-23 |
| 4397861 | N- And carboxyl derivatives of thienamycin | John Hannah, William J. Leanza, David H. Shih | 1983-08-09 |
| 4388310 | 6-Amido-2-S-oxides of substituted 2-organothio-pen-2-em-3-carboxylic acids | Frank P. DiNinno, David A. Muthard, Ronald W. Ratcliffe | 1983-06-14 |
| 4386030 | Process for preparing 6-(1'-hydroxyethyl)-2-substituted-pen-2-em-3-carboxylic acid | Frank P. DiNinno | 1983-05-31 |
| 4383946 | Process for the preparation of 1-carbapenems and intermediates via silyl-substituted dithioacetals | Ronald W. Ratcliffe, Thomas N. Salzmann | 1983-05-17 |
| 4378315 | Process for the preparation of thienamycin and intermediates | Ronald W. Ratcliffe, Thomas N. Salzmann | 1983-03-29 |
| 4374849 | 6-Amidocyclonocardicins | James V. Heck | 1983-02-22 |
| 4374848 | 6-(1-Hydroxyethyl)cyclonocardicin | James V. Heck, Michael J. Szymonifka | 1983-02-22 |
| 4372965 | 6-, 1- And 2-substituted-thio-1-carbadethiapen-2-em-3-carboxylic acid S-oxides | David H. Shih | 1983-02-08 |
| 4369187 | 3-Substituted-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acid | Ronald W. Ratcliffe | 1983-01-18 |
| 4357342 | 1-Azabicyclo[3.2.0]heptan-3,7-dione-2-carboxylic acid | Ronald W. Ratcliffe | 1982-11-02 |
| 4356120 | 3-(1-Hydroxyethyl)-4-(but-2-ene)-azetidin-2-one and derivatives | Ronald W. Ratcliffe, Thomas N. Salzmann | 1982-10-26 |
| 4350631 | 6- and 4-Substituted-1-azabicyclo[3.2.0]heptan-3,7-dione-2-carboxylates | David H. Shih | 1982-09-21 |
| 4348320 | Substituted azetidiones | F. Aileen Bouffard, David B. R. Johnston | 1982-09-07 |
| 4347367 | 3-Substituted-6-(1'-hydroxyethyl)-7-oxo-1-azabicyc lo[3.2.0]-hept-2-ene-2-carboxylic acid | David B. R. Johnston, Susan M. Schmitt | 1982-08-31 |
| 4347368 | 3 -Substituted-6-substituted-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxyl ic acid | David B. R. Johnston, Susan M. Schmitt | 1982-08-31 |
| 4343937 | 3-Substituted-7-methoxy-7-amino-3-cephem-4-carboxylic acids | Sandor Karady, Lovji D. Cama, Meyer Sletzinger | 1982-08-10 |
| 4342869 | Cephalosporin antibiotics | Sandor Karady, Lovji D. Cama, Meyer Sletzinger | 1982-08-03 |
| 4342757 | Cephalosporin antibiotic compositions | Sandor Karady, Lovji D. Cama, Meyer Sletzinger | 1982-08-03 |
| 4341706 | Process for the preparation of carbapenem antibiotics | David H. Shih | 1982-07-27 |
| 4341791 | 6-, 2- and 1,1-Disubstituted-1-carbadethiapen-2-em-3-carboxylic acid S-oxides | David H. Shih | 1982-07-27 |
| 4338437 | Cephalosporin antibiotics | Sandor Karady, Lovji D. Cama, Meyer Sletzinger | 1982-07-06 |
| 4338438 | Cephalosporin antibiotics | Sandor Karady, Lovji D. Cama, Meyer Sletzinger | 1982-07-06 |