Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5959001 | Pigment preparations | Klaus Walz, Gerd Schmitz, Udo Herrmann, Josef Leitermann | 1999-09-28 |
| 5889065 | Pigment preparations | Stephan Kirchmeyer, Josef Leitermann, Peter-Roger Nyssen, Christian Wamprecht | 1999-03-30 |
| 4988752 | Colored thermoplastic resin composition | Rainer Hamprecht, Georg Pape | 1991-01-29 |
| 4386195 | Dyestuff preparations, processes for their production and their use for dyeing plastics | Fritz Bremer, Karlheinz Wolf, Konrad Nonn, Reinhold Hornle, Georg Pape | 1983-05-31 |
| 4332587 | Colorant preparations, a process for their production and their use for coloring plastics | Joachim Kolbe, Fritz Bremer, Georg Pape, Karlheinz Wolf, Ferdinand Kummeler | 1982-06-01 |