Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810797 | Method of preparing 2,3,6-trichloropyridine and 2,3,5,6-tetrachloropyridine in the gas phase | Joseph Sharvit, Abraham A. Pereferkovich | 1989-03-07 |
| 4801716 | Process for preparing 2,3,4,5-tetrachloro-6-(trichloromethyl) pyridine | Joseph Sharvit | 1989-01-31 |