Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346204 | Copolymers containing hydroxyl groups, method of production and their application in sizing of paper | Karl Peterlein, Klaus Diedrich | 1982-08-24 |
| 4316977 | Copolymer of maleic anhydride, dicyclopentadiene and vinylcyclohexene and its use as anionic paper surface sizing material | Fritz Gude, Herbert Haferkorn | 1982-02-23 |