Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073636 | Preparation of symmetrical tetrachloropyridine from chlorinated beta-(trichloromethyl)pyridines employing a catalyst | Thomas J. Dietsche | 1991-12-17 |
| 4968807 | Preparation of symmetrical tetrachloropyridine from chlorinated beta(trichloromethyl) pyridines employing a catalyst | Thomas J. Dietsche | 1990-11-06 |
| 4701532 | Method of selectively chlorinating 2-chloro-5-(trichloromethyl) pyridine in the 3-position | Thomas J. Dietsche, James L. Bixby | 1987-10-20 |
| 4681945 | Preparation of symmetrical tetrachloropyridine from chlorinated .beta.-(trichloromethyl) pyridines employing a catalyst | Thomas J. Dietsche | 1987-07-21 |
| 4532111 | Recovery of catalysts as W, Mo or Ru oxychlorides in liquid phase chlorination of pyiridine compounds | Jonathan A. Okorley | 1985-07-30 |