Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4599423 | Preparation of 5-(hydroxy- and/or aminophenyl-6-lower-alkyl)-2(1H)-pyridinones | George Y. Lesher, Chester J. Opalka, Jr., Ruthann M. McGarry | 1986-07-08 |
| 4559352 | 1,2-Dihydro-2-oxo-5-(hydroxy-and/or amino-phenyl)-nicotinonitriles and cardiotonic use thereof | George Y. Lesher, Chester J. Opalka, Jr. | 1985-12-17 |
| 4515797 | 3-Amino-5-(hydroxy- and/or aminophenyl)-6-(lower-alkyl)-2(1H)-pyridinones and cardiotonic use thereof | George Y. Lesher, Chester J. Opalka, Jr. | 1985-05-07 |
| 4465686 | 5-(Hydroxy- and/or amino-phenyl)-6-(lower-alkyl)-2-(1H)-pyridinones, their cardiotonic use and preparation | George Y. Lesher, Chester J. Opalka, Jr., Ruthann M. McGarry | 1984-08-14 |
| 4420617 | 5(Pyridinyl)pyridin-2-amines | George Y. Lesher, Chester J. Opalka, Jr. | 1983-12-13 |
| 4391811 | 2-Amino-6-(pyridinyl)-3H-imidazo[4,5-b]pyridines and their cardiotonic use | George Y. Lesher, Chester J. Opalka, Jr. | 1983-07-05 |
| 4377585 | Use of 4-[4(or 3)-aminophenyl]pyridines as cardiotonic agents | George Y. Lesher | 1983-03-22 |
| 4376775 | N-[4-(4-Pyridinyl)phenyl]ureas and their cardiotonic use | George Y. Lesher | 1983-03-15 |
| 4374141 | 2-Substituted amino-5-(pyridinyl)-nicotinamides and their cardiotonic use | George Y. Lesher, Chester J. Opalka, Jr. | 1983-02-15 |
| 4362734 | 2-(Substituted-amino)-5-(pyridinyl-nicotinonitriles, and their cardiotonic use | George Y. Lesher, Chester J. Opalka, Jr. | 1982-12-07 |
| 4351941 | Pyridinyl-pyridines | George Y. Lesher, Chester J. Opalka, Jr. | 1982-09-28 |
| 4331672 | 5-(Pyridinyl)pyridine-2-hydrazines, their preparation and their cardiotonic use | George Y. Lesher, Chester J. Opalka, Jr. | 1982-05-25 |
| 4322533 | 1H-Indole-2,3-dione derivatives | George Y. Lesher, Monte D. Gruett | 1982-03-30 |
| 4317827 | 4-[4(or 3)-Acylaminophenyl]pyridines and their use as cardiotonics | George Y. Lesher | 1982-03-02 |
| 4312875 | 5-(Pyridinyl)-6-(lower-alkyl)-2(1H)-pyridinones, 1,2-dihydro-2-oxo-5-(pyridinyl)-6-(lower-alkyl)nicotinic acids and lower-alkyl esters thereof, and cardiotonic use thereof | George Y. Lesher, Chester J. Opalka, Jr. | 1982-01-26 |
| 4309537 | Production of imidazo[4,5-b]pyridin-2-ones or thiones | George Y. Lesher, Chester J. Opalka, Jr. | 1982-01-05 |
| 4297360 | 5-(Pyridinyl)pyridine-2,3-diamines, preparation thereof and their cardiotonic use | George Y. Lesher, Chester J. Opalka, Jr. | 1981-10-27 |
| 4294837 | 1,3-Dihydro-6-(pyridinyl)-2H-imidazo[4,5-b]pyridin-2-ones and -imidazo[4,5-b]pyridine-2-thiones and their cardiotonic use | George Y. Lesher, Chester J. Opalka, Jr. | 1981-10-13 |
| 4276293 | Compositions and their preparation | George Y. Lesher, Chester J. Opalka, Jr. | 1981-06-30 |