Issued Patents All Time
Showing 76–100 of 126 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335043 | Substituted N-methylene derivatives of thienamycin | William J. Leanza, Kenneth J. Wildonger | 1982-06-15 |
| 4324890 | Cephalosporin intermediates | Sandor Karady, Lovji D. Cama, Meyer Sletzinger | 1982-04-13 |
| 4321197 | 1-Carba-6-(1-hydroxyethyl)-2-carbonyl-penem-3-carboxylic acid and preparation thereof | Lovji D. Cama, Ravindra N. Guthikonda | 1982-03-23 |
| 4318912 | 6-(1-Hydroxyethyl)-3-substituted-1-azabicyclo(3.2.0)-hept-2-en-7-one-2-ca rboxylic acid | Ronald W. Ratcliffe | 1982-03-09 |
| 4312871 | 6-, 1- And 2-substituted-1-carbadethiapen-2-em-3-carboxylic acids | David H. Shih | 1982-01-26 |
| 4311704 | Substituted N-methylene derivatives of thienamycin | William J. Leanza, David H. Shih, Kenneth J. Wildonger | 1982-01-19 |
| 4310538 | 3-Halo-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acid | Ronald W. Ratcliffe | 1982-01-12 |
| 4309438 | N-Alkyl-N-iminomethyl derivatives of thienamycin | William J. Leanza, Kenneth J. Wildonger | 1982-01-05 |
| 4309346 | Process for the preparation of 1-carbapenems and intermediates via trithioorthoacetates | Ronald W. Ratcliffe, Thomas N. Salzmann | 1982-01-05 |
| 4301074 | 6-(1'-Hydroxyethyl)-2-substituted-pen-2-em-3-carboxylic acid | Frank P. DiNinno | 1981-11-17 |
| 4298741 | 6-Amido-3-substituted-1-azabicyclo[3.2.0]-hept-2-en-7-one-2-carboxylic acid | Ravindra N. Guthikonda, Ronald W. Ratcliffe | 1981-11-03 |
| 4297488 | 7-.alpha.-Methoxy cephalosporins | Lovji D. Cama, Sandor Karady, Meyer Sletzinger | 1981-10-27 |
| 4296236 | 7-(or 6-) Substituted-7-(or 6-)acylimino cephalosporin (or penicillin) compounds | David B. R. Johnston, Raymond A. Firestone | 1981-10-20 |
| 4296111 | 7-Substituted methyl cephalosporins derivatives and analogues thereof | Thomas R. Beattie, Frank P. DiNinno | 1981-10-20 |
| 4293555 | 6- and 6,6-Disubstituted-2-substituted-oxapen-2-em-3-carboxylic acids | Frank P. DiNinno | 1981-10-06 |
| 4290947 | Process for the preparation of thienamycin and intermediates | Ronald W. Ratcliffe, Thomas N. Salzman | 1981-09-22 |
| 4281002 | 3-(2-Aminoethylthio)-6-amido-7-oxo-1-azabicyc lo(3.2.0)-hept-2-ene-2-carboxylic acid | Ravindra N. Guthikonda, David B. R. Johnston, Susan M. Schmitt | 1981-07-28 |
| 4277482 | 3-Substituted thio-6-amido-7-oxo-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid s-oxides | Ravindra N. Guthikonda, David B. R. Johnston, Susan M. Schmitt | 1981-07-07 |
| 4273709 | Process for the preparation of thienamycin and intermediates | Ronald W. Ratcliffe, Thomas N. Salzmann | 1981-06-16 |
| 4269873 | 2-, 5-, and 6-Substituted-1-carbadethiapen-2-em-3-carboxylic acids | David B. R. Johnston, Susan M. Schmitt | 1981-05-26 |
| 4267188 | 5-Substituted-1-carba-pen-2-em-3-carboxylic acid | Lovji D. Cama | 1981-05-12 |
| 4264621 | 5-Substituted-3 -(2-aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-en e-2-carboxylic acid | David B. R. Johnston, Susan M. Schmitt | 1981-04-28 |
| 4262011 | 1-1-Disubstituted-pen-2-em-3-carboxylic acids | David H. Shih | 1981-04-14 |
| 4262009 | 6- And 1,1-disubstituted-1-carbadethiapen-2-em-3-carboxylic acid | David H. Shih | 1981-04-14 |
| 4262010 | 6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-1,1-disubstituted-1-carbadet hiapen-2-em-3-carboxylic acids | David H. Shih | 1981-04-14 |