Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4567186 | 5-Heteryl-1,6-naphthyridin-2(1H)-ones, cardiotonic use thereof and intermediates therefor | George Y. Lesher | 1986-01-28 |
| 4560691 | 5-(Phenyl)-1,6-naphthyridin-2(1H)-ones, their cardiotonic use and preparation | George Y. Lesher | 1985-12-24 |
| 4560753 | 2-Substituted-pyrido[2,3-d]pyrimidin-5(8H)-ones | George Y. Lesher, Stanley C. Laskowski | 1985-12-24 |
| 4559347 | 3-Substituted-5-alkyl-1,6-naphthyridin-2(1H)-ones, cardiotonic use and preparation thereof | George Y. Lesher | 1985-12-17 |
| 4539327 | 5-(2-Substituted-4-thiazolyl)-6-alkyl-2(1H)-pyridinones and cardiotonic use thereof | George Y. Lesher | 1985-09-03 |
| 4532247 | 5-(Hydroxyalkyl or alkanoyloxymethyl)-1,6-naphthyridin-2(1H)-one and cardiotonic use thereof | George Y. Lesher | 1985-07-30 |
| 4524149 | 5-Alkanoyl-6-alkyl-2(1H)-pyridinones, their preparation and their cardiotonic use | George Y. Lesher | 1985-06-18 |
| 4517190 | 5-Alkyl-1,6-naphthyridin-2(1H)-ones and cardiotonic use thereof | George Y. Lesher | 1985-05-14 |
| 4512993 | 4(Or 5)-(pyridinyl)-2-pyrimidinamines and cardiotonic use thereof | George Y. Lesher | 1985-04-23 |
| 4506075 | Process of preparing cardiotonic 3-methyl-4-(4-pyridinyl)benzeneamines | George Y. Lesher | 1985-03-19 |
| 4504482 | [5(or 4)-(Pyridinyl)-2-pyrimidinyl]ureas and cardiotonic use thereof | George Y. Lesher | 1985-03-12 |
| 4503228 | 2-(Pyridinyl)-4,5,6-pyrimidinetriamines | George Y. Lesher | 1985-03-05 |
| 4473571 | 8-Substituted-2-(4-pyridinyl)-9H-purin-6-amines and their cardiotonic use | George Y. Lesher | 1984-09-25 |
| 4469699 | 5-(4-Thiazolyl)-6-alkyl-2(1H)-pyridinones and their cardiotonic use | George Y. Lesher | 1984-09-04 |
| 4463008 | 2-Alkoxy-5-(pyridinyl)pyridines and cardiotonic use thereof | George Y. Lesher, Chester J. Opalka, Jr. | 1984-07-31 |
| 4451469 | Selected 6-alkyl-and 4,6-dialkyl-2(1H)-pyridinones as cardiotonics | George Y. Lesher | 1984-05-29 |
| 4432981 | 2-(Pyridinyl or hydroxyphenyl)-8-substituted pyrido[2,3-d]pyrimidin-5(8H)-ones | George Y. Lesher, Stanley C. Laskowski | 1984-02-21 |
| 4431651 | 2-Pyridinones and their use as cardiotonic agents | George Y. Lesher, Philip M. Carabateas | 1984-02-14 |
| 4415580 | Certain 2-(1H)-pyridinones cardiotonic compositions containing same and method of using same | George Y. Lesher | 1983-11-15 |
| 4415578 | Cardiotonic 3-methyl-4-(4-pyridinyl)benzeneamine compositions and method of use | George Y. Lesher | 1983-11-15 |
| 4413127 | Preparation of 1,2-dihydro-6-(lower alkyl)-2-oxo-5-(pyridinyl)nicotinonitriles | — | 1983-11-01 |
| 4412077 | Process for preparing 5-(lower-alkanoyl)-6-(lower-alkyl)-2(1H)-pyridinone | George Y. Lesher | 1983-10-25 |
| 4366319 | Process for preparing 5-(pyridinyl)benzoxazol-2(3H)-ones | George Y. Lesher | 1982-12-28 |
| 4347363 | Process for preparing 1,2-dihydro-6-methyl-2-oxo-5-(pyridinyl)nicotinonitriles | — | 1982-08-31 |
| 4346221 | Preparation of 4-amino-6-(pyridinyl)-3(2H)-pyridazinones from 6-(pyridinyl)-3(2H)-pyridazinones | George Y. Lesher, William B. Dickinson | 1982-08-24 |