Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10202509 | Colouring composition comprising starch derivatives as a hydrocolloid | Klaus Koehler | 2019-02-12 |
| 6500473 | Coloring substance composition and a method of manufacturing same | Klaus Koehler, Claus Soendergaard, Martin Kensoe | 2002-12-31 |