Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5234465 | Pad-dyeing of cellulose fibers with sulfur black dyes: mixture of dithionite and glucose reducing sugar as reducing agent in aqueous alkaline dye bath | Manfred Hahnke, Ullrich Saalfrank, Claus Schuster, Gerd Krauzpaul | 1993-08-10 |
| 4810254 | Wet-fastness properties of sulphur dyestuffs dyeings on cellulose treated with poly-di-allyl-ammonium salt | Wolfgang Bauer, Karl-Heinz Keil, Gert Nagl, Manfred Kaiser, Klaus Sternberger | 1989-03-07 |
| 4242091 | Process for the continuous dyeing of textile webs pre-heated with infra-red or micro-waves | Erich Feess, Walter Birke | 1980-12-30 |