Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350827 | Method for recovering pure metahydroxybenzoic acid | Walter R. Demler | 1982-09-21 |
| 4324926 | Process for the purification of 4,4' dihydroxydiphenyl | Walter R. Demler, Krishen L. Nagpal, Richard M. Dollard, Donald T. Donahue | 1982-04-13 |
| 4243822 | Process for the manufacture of 4,4' dihydroxydiphenyl | Walter R. Demler, Krishen L. Nagpal, Richard M. Dollard, Donald T. Donahue | 1981-01-06 |