Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839098 | Liquid detergent | Klaus-Dieter Wisotzki, Peter Jeschke, Klaus Schumann, Karl Schmid, Manfred Biermann | 1989-06-13 |
| 4797231 | Multipurpose cleaning preparations for hard surfaces | Klaus Schumann, Paul Schulz, Franz Foerg | 1989-01-10 |
| 4732704 | Manual dishwashing liquid detergent containing fatty alkylmonogluside | Manfred Biermann, Martin Bischoff, Peter Sandkuehler, Harald Schnegelberger, Karl Schmid +3 more | 1988-03-22 |