Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4255151 | Process for dyeing and printing cellulose fibres | Volker Hederich, Gunter Gehrke, Robert Kuth | 1981-03-10 |
| 4246211 | Process for the production of foam materials on polyolefin basis | — | 1981-01-20 |
| 4244860 | Plastic molding composition | Karl-Gunter Scharf, Paul Spielau, Richard Weiss | 1981-01-13 |