Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927968 | Chemical intermediates and process | Robert Farney | 1990-05-22 |
| 4788184 | Substituted 3-cyclobutene-1,2-diones as anti-ulcer agents | Ronnie R. Crenshaw | 1988-11-29 |
| 4772704 | 2,5-disubstituted-4(3H)-pyrimidones having histamine H.sub.2 -receptor antagonist activity | — | 1988-09-20 |
| 4692531 | Substituted 3,4-diamino-1,2,5-thiadiazoles having histamine H.sub.2 -receptor antagonist activity | Ronnie R. Crenshaw | 1987-09-08 |
| 4644006 | Substituted 3,4-diamino-1,2,5-thiadiazoles having histamine H.sub.2 -receptor antagonist activity | Ronnie R. Crenshaw | 1987-02-17 |
| 4607105 | 3-cyclobutene-1,2-dione intermediates | Ronnie R. Crenshaw | 1986-08-19 |
| 4600779 | Substituted 3,4-diamino-1,2,5-thiadiazoles having histamine H.sub.2 -receptor antagonist activity | Ronnie R. Crenshaw | 1986-07-15 |
| 4595758 | Ethanediimidamide intermediates | Ronnie R. Crenshaw | 1986-06-17 |
| 4588826 | Ethanediimidamide intermediates | Ronnie R. Crenshaw | 1986-05-13 |
| 4578471 | Substituted amino alkyl pyridyl ethanediimidamides | Ronnie R. Crenshaw | 1986-03-25 |
| 4546188 | Substituted 1,2-diaminocyclobutene-3,4-diones | Ronnie R. Crenshaw | 1985-10-08 |
| 4539316 | Pyridine derivatives of 1,2-diaminocyclobutene-3,4-diones | Ronnie R. Crenshaw | 1985-09-03 |
| 4528378 | Substituted 3,4-diamino-1,2,5-thiadiazoles having histamine H.sub.2 -receptor antagonist activity | Ronnie R. Crenshaw | 1985-07-09 |
| 4528375 | Substituted 3,4-diamino-1,2,5-thiadiazoles having histamine H.sub.2 -receptor antagonist activity | Ronnie R. Crenshaw | 1985-07-09 |
| 4528377 | Substituted 3,4-diamino-1,2,5-thiadiazoles having histamine H.sub.2 -receptor antagonist activity | Ronnie R. Crenshaw | 1985-07-09 |
| 4526973 | Chemical compounds | Ronnie R. Crenshaw | 1985-07-02 |
| 4522943 | Chemical compounds | Ronnie R. Crenshaw | 1985-06-11 |
| 4517366 | Intermediates for preparing 3,4-diamino-1,2,5-thiadiazoles | Ronnie R. Crenshaw | 1985-05-14 |
| 4510309 | Histamine H.sub.2 -antagonists | Ronnie R. Crenshaw | 1985-04-09 |
| 4503051 | Substituted 3-cyclobutene-1,2-diones, pharmaceutical compositions thereof and methods of use | Ronnie R. Crenshaw | 1985-03-05 |
| 4471122 | Thiadiazole histamine H.sub.2 -antagonists | Ronnie R. Crenshaw | 1984-09-11 |
| 4395553 | Chemical compounds | Ronnie R. Crenshaw | 1983-07-26 |
| 4394508 | Chemical compounds | Ronnie R. Crenshaw | 1983-07-19 |
| 4390701 | 1-Amino-2-[3-(3-piperidinomethylphenoxy)propylamino]cyclobutene-3,4-dione | Ronnie R. Crenshaw | 1983-06-28 |
| 4380639 | Substituted 1,2,5-thiadiazole derivatives | Ronnie R. Crenshaw | 1983-04-19 |