Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342933 | Cationic-2-heteroarylphenyl-carbapenem antibacterial agents | Frank P. DiNinno, Ravindra N. Guthikonda | 1994-08-30 |
| 5292879 | Intermediates for preparing cationic-2-heteroaryl-phenyl-carbapenem antibacterial agents | Frank P. DiNinno, Ravindra N. Guthikonda | 1994-03-08 |
| 5220011 | Intermediates for preparing 2-heteroarylphenyl-carbapenem antibacterial agents | Frank P. DiNinno, Ravindra N. Guthikonda | 1993-06-15 |
| 5208229 | 2-(1,2,3-triazolylsubstituted)phenyl carbapenem antibacterial agents | — | 1993-05-04 |
| 5143914 | 2-heteroarylphenyl-carbapenem antibacterial agents | Frank P. DiNinno, Ravindra N. Guthikonda | 1992-09-01 |
| 5128335 | 2-heteroarylphenyl-carbapenem antibacterial agents | Ravindra N. Guthikonda, Frank P. DiNinno | 1992-07-07 |
| 4997936 | 2-carbamimidoyl-6-substituted-1-carbadethiapen-2-em-3-carboxylic acids | Burton G. Christensen, David B. R. Johnston | 1991-03-05 |
| 4992542 | 2-substituted-6-carbadethiapen-2-em-3-carboxylic acids | Burton G. Christensen, David B. R. Johnston | 1991-02-12 |
| 4873324 | Process for chiral synthesis of 1-beta-methyl-carbapenem intermediates | Burton G. Christensen, Lovji D. Cama | 1989-10-10 |
| 4734497 | Intermediates for process for chiral synthesis of 1-.beta.-methyl-carbapenem intermediates | Burton G. Christensen, Lovji D. Cama | 1988-03-29 |
| 4617152 | .beta.-lactams containing an .alpha.-exocyclic double bond | Burton G. Christensen, Lovji D. Cama | 1986-10-14 |
| 4595750 | Process for chiral synthesis of 1-.beta.-methylcarbapenem intermediates | Burton G. Christensen, Lovji D. Cama | 1986-06-17 |
| 4347367 | 3-Substituted-6-(1'-hydroxyethyl)-7-oxo-1-azabicyc lo[3.2.0]-hept-2-ene-2-carboxylic acid | Burton G. Christensen, David B. R. Johnston | 1982-08-31 |
| 4347368 | 3 -Substituted-6-substituted-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxyl ic acid | Burton G. Christensen, David B. R. Johnston | 1982-08-31 |
| 4281002 | 3-(2-Aminoethylthio)-6-amido-7-oxo-1-azabicyc lo(3.2.0)-hept-2-ene-2-carboxylic acid | Burton G. Christensen, Ravindra N. Guthikonda, David B. R. Johnston | 1981-07-28 |
| 4277482 | 3-Substituted thio-6-amido-7-oxo-1-azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid s-oxides | Burton G. Christensen, Ravindra N. Guthikonda, David B. R. Johnston | 1981-07-07 |
| 4269873 | 2-, 5-, and 6-Substituted-1-carbadethiapen-2-em-3-carboxylic acids | Burton G. Christensen, David B. R. Johnston | 1981-05-26 |
| 4264621 | 5-Substituted-3 -(2-aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-en e-2-carboxylic acid | Burton G. Christensen, David B. R. Johnston | 1981-04-28 |
| 4234596 | 3-(2-Aminoethyl thio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid | Burton G. Christensen, David B. R. Johnston | 1980-11-18 |
| 4224336 | 3-(2-Aminoethylthio)-6-amido-7-oxo-1-azabicyclo[3.2.0]- hept-2-ene-2-carboxylic acid | Burton G. Christensen, Ravindra N. Guthikonda, David B. R. Johnston | 1980-09-23 |
| 4218463 | 3-Substituted thio-6-amido-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid | Burton G. Christensen, Ravindra N. Guthikonda, David B. R. Johnston | 1980-08-19 |