Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886883 | Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides | William A. Kleschick, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased +1 more | 1989-12-12 |
| 4818273 | Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides | William A. Kleschick, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased | 1989-04-04 |