Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021591 | Pyrazolo[1,5-a]pyrimidine-2-sulfide compounds | William A. Kleschick | 1991-06-04 |
| 4997940 | Pyrazolo[1,5-a]pyrimidine-2-sulfonyl chloride and -2-sulfide compounds | William A. Kleschick | 1991-03-05 |
| 4992091 | Substituted pyrazolo[1,5-a]pyrimidine-2-sulfonamides and compositions and methods of controlling undesired vegetation | William A. Kleschick | 1991-02-12 |
| 4772720 | Process for the preparation of intermediates useful for making herbicidal sulfonamides derived from substituted 2-amino-1,2,4-triazolo(1,5-A)pyrimidines | William A. Kleschick, Joseph E. Dunbar | 1988-09-20 |
| 4761474 | 3-(1H-tetrazol-5-yl)thieno[2,3-d]pyrimidin-4(3H)-ones | Norton P. Peet, Shyam Sunder | 1988-08-02 |
| 4650892 | Process for the preparation of herbicidal sulfonamides | William A. Kleschick, Joseph E. Dunbar | 1987-03-17 |
| 4644065 | Process for the preparation of 4(3H)-quinazolinones | — | 1987-02-17 |
| 4638075 | Herbicidal sulfonamides | William A. Kleschick, Joseph E. Dunbar | 1987-01-20 |