Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5525743 | Preparation of anthraquinone imide compounds | Udo Bergmann, Helmut Hoch, Heike Kilburg, Reinhold Kohlhaupt | 1996-06-11 |
| 5505743 | Vat dyes | Manfred Patsch, Michael Schmitt | 1996-04-09 |
| 5401846 | Preparation of 5-halo-2-(1-anthraquinonylamino)-benzoic acids and 4'-halo-2,1(N)-anthraquinonyl-1',2'(N)-benzacridones | Michael Schmitt, Manfred Patsch | 1995-03-28 |
| 5367074 | Preparation of 7,16-dichlorodianthraquinone-N,N'-dihydroazine | Michael Schmitt | 1994-11-22 |
| 5334734 | Vat dyes | Manfred Patsch | 1994-08-02 |
| 5231171 | Reactive dyes having an allylsulfonyl or propargylesulfonyl group | Claus Marschner, Bernd Siegel, Manfred Patsch, Klaus Pandl | 1993-07-27 |