Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10870743 | Coated pigments for coloring PVC | Ulrich Meisen, Ralf Koenig | 2020-12-22 |
| 10538671 | Coated pigments for dyeing PVC | — | 2020-01-21 |
| 10450464 | Mixtures of coated pigments and fatty acid salts for dyeing PVC | — | 2019-10-22 |
| 9090774 | Oil- and wax-containing compositions in piece form for the coloring of asphalt and bitumen | Jurgen Kischkewitz, Lutz Kohnert, Holger Inden | 2015-07-28 |