Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366102 | Process for the preparation of chloroformic acid aryl esters | Heinz U. Blank, Karl Mannes, Dietmar Mayer | 1982-12-28 |
| 4339396 | Process for the preparation of naphthalenesulphonyl chloride | Karl Mannes, Dietmar Mayer | 1982-07-13 |