Issued Patents All Time
Showing 1–25 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7455827 | Process for preparing a catalyst for conversion of cyanopyridines to nicotinamides | Subhash Chandra Ray, Hiralal Prasad, Prodyot Kumar Sarkar, Pashupati Dutta, Shyam Kishore Roy +2 more | 2008-11-25 |
| 7345176 | Process for conversion of cyanopyridines to nicotinamides and catalyst therefor, process for preparing said catalyst | Subhash Chandra Ray, Hiralal Prasad, Prodyot Kumar Sarkar, Pashupati Dutta, Shyam Kishore Roy +2 more | 2008-03-18 |
| 6734309 | Process for the synthesis of isonicotinic acid hydrazide | Subhash Chandra Ray, Lakshmi Narayan Nandi, Hiralal Prasad, Sumant Maharaj, Prodyot Kumar Sarkar +4 more | 2004-05-11 |
| 5977118 | 6-substituted pyrazolo[3,4-d]pyrimidin-4-ones and compositions and methods of use thereof | Edward R. Bacon, Sol J. Daum | 1999-11-02 |
| 5958929 | 6-aryl pyrazolo 3,4-d! pyrimidin-4-ones and compositions and methods of use thereof | Edward R. Bacon | 1999-09-28 |
| 5736548 | 6-aryl pyrazolo3,4-D! pyrimidin-4-ones and compositions and method of use thereof | Edward R. Bacon | 1998-04-07 |
| 5656629 | 6-substituted pyrazolo (3,4-d)pyrimidin-4-ones and compositions and methods of use thereof | Edward R. Bacon, Sol J. Daurn | 1997-08-12 |
| 5603916 | 3 5-bis alkanoyl amino-2 4 6-triiodobenzyl esters | — | 1997-02-18 |
| 5573750 | Diagnostic imaging x-ray contrast agents | — | 1996-11-12 |
| 5541187 | 6-heterocycyclyl pyrazolo[3,4-d]pyrimidin-4-ones and compositions and method of use thereof | Edward R. Bacon, George Y. Lesher | 1996-07-30 |
| 5488133 | Iodinated aroyloxy ketones | Edward R. Bacon, Shaughnessy Robinson | 1996-01-30 |
| 5384107 | Iodinated aromatic compounds | Edward R. Bacon, Carl R. Illig | 1995-01-24 |
| 5294612 | 6-heterocyclyl pyrazolo [3,4-d]pyrimidin-4-ones and compositions and method of use thereof | Edward R. Bacon, George Y. Lesher | 1994-03-15 |
| 5169853 | Pyridinyl-quinolone compounds, their preparation and use | George Y. Lesher, Michael Reuman, Sol J. Daum | 1992-12-08 |
| 5075319 | Pyridinyl-quinolone compounds, their preparation and use | George Y. Lesher, Michael Reuman | 1991-12-24 |
| 5010086 | Imidazopyridines, compositions and use | George Y. Lesher, Edward R. Bacon, Gee-Hong Kuo | 1991-04-23 |
| 4963561 | Imidazopyridines, their preparation and use | George Y. Lesher, Edward R. Bacon, Gee-Hong Kuo | 1990-10-16 |
| 4716170 | 5-[1H-(5-membered-N-aromatic heteryl)-1-yl]-1,6-naphthyridin-2(1H)-ones and their cardiotonic use | George Y. Lesher | 1987-12-29 |
| 4699984 | Preparation of intermediates to 6-fluoro-7-(2,6-dimethylpyridyl)quinoline carboxylic acids and compounds | — | 1987-10-13 |
| 4697021 | 1,6-dihydro-6-oxo-3-pyridinecarbonitriles, intermediates for cardiotonic agents | George Y. Lesher | 1987-09-29 |
| 4657915 | 1,6-naphthyridine-2(1H)-ones and their use as cardiotonic agents | George Y. Lesher | 1987-04-14 |
| 4650806 | Cardiotonic 5-(heterylcarbonyl)-pyridones | George Y. Lesher | 1987-03-17 |
| 4634772 | 2-[2-(di-lower-alkylamino)-1 -propenyl]-6-methoxy-3-pyridinecarbonitriles, intermediates for cardiotonic agents | George Y. Lesher | 1987-01-06 |
| 4604399 | 5-methyl(or ethyl)-1,6-naphthyridin-2(1H)-one 6-oxides, their preparation and the cardiotonic use thereof | George Y. Lesher | 1986-08-05 |
| 4595762 | 5-.alpha.-bromoalkanoyl-2-oxo-3-pyridinecarbonitriles | George Y. Lesher | 1986-06-17 |