Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9090774 | Oil- and wax-containing compositions in piece form for the coloring of asphalt and bitumen | Krzysztof Chlopek, Jurgen Kischkewitz, Lutz Kohnert | 2015-07-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9090774 | Oil- and wax-containing compositions in piece form for the coloring of asphalt and bitumen | Krzysztof Chlopek, Jurgen Kischkewitz, Lutz Kohnert | 2015-07-28 |