Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814763 | Mediator systems based on mixed metal complexes, used for reducing dyes | Thomas Bechtold, Stefan Mohr, Wolfgang Schrott, Wolfgang Hiebsch | 2004-11-09 |
| 6790241 | Mediator systems based on mixed metal complexes, used for reducing dyes | Thomas Bechtold, Eduard Burtscher, Wolfgang Schrott, Peter Maier, Georg Schnitzer +1 more | 2004-09-14 |
| 6767448 | Method for producing aqueous alkaline solutions or reduced indigoid dyes | Thomas Bechtold, Rudolf Kruger, Hans-Peter Maier, Georg Schnitzer, Franz Sütsch +1 more | 2004-07-27 |
| 5795926 | Preparation of finely divided polymer powders | Manfred Niessner, Wilfried Heide, Heinrich Hartmann | 1998-08-18 |
| 5684107 | Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers, the preparation thereof and the use thereof | Reinhard Schneider, Heinrich Hartmann | 1997-11-04 |
| 5346986 | Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers, the preparation thereof and the use thereof | Reinhard Schneider, Heinrich Hartmann | 1994-09-13 |
| 5219969 | Crosslinked copolymers with crosslinkable groups based on acrylic or methacrylic acid, preparation thereof and use thereof | Guenter Uhl, Reinhard Schneider, Ingeborg Schermann, Manfred Niessner, Heinrich Hartmann | 1993-06-15 |
| 4465628 | Azo dyes comprising a heterocyclic diazo component | Guenter Hansen, Wolf-Dieter Kermer | 1984-08-14 |
| 4464181 | Mixtures of benzisothiazole mono-azo dyes for cellulose acetate | Helmut Degen, Johannes P. Dix, Guenter Hansen, Reinhold Krallmann | 1984-08-07 |
| 4400174 | Process for printing on synthetic fibers: reducing agent and alkoxylated amine for discharge | Adolf Blum | 1983-08-23 |
| 4221711 | Brown to violet substituted phenyl-substituted anilino azo dyes | Guenter Hansen, Wolf-Dieter Kermer | 1980-09-09 |