Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4215054 | Production of liquid ortho-phthalic acid and its conversion to high purity phthalic anhydride | Hobe Schroeder, George E. Kuhlmann, David Aaron Palmer | 1980-07-29 |
| 4215055 | Production of liquid ortho-phthalic acid and its conversion to high _purity phthalic anhdyride | David Aaron Palmer, George E. Kuhlmann, Hobe Schroeder | 1980-07-29 |
| 4211881 | Preparation of phthalic acid by single step continuous air oxidation of liquid ortho-xylene | George E. Kuhlmann, Alan G. Bemis | 1980-07-08 |