Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846336 | Acid-resistant solutions containing aromatic formaldehyde condensation products | Michael Gerle, Hans-Albert Ehlert, Ralf Heinen | 2005-01-25 |
| 6171608 | Insecticide formulations | Guido Schmitt, Gerd Schmitz, Burkhard Mielke, Hermann Neumann | 2001-01-09 |
| 6099594 | Simultaneous finish-stripping and dyeing of synthetic fibers | Ferdinand Kummeler, Michael Pirkotsch, Josef Pfeiffer, Fritz Lesszinsky | 2000-08-08 |
| 6056787 | Process for the pretreatment of fibers | Gerd-Friedrich Renner, Michael Pirkotsch, Torsten Groth, Winfried Joentgen | 2000-05-02 |
| 5959001 | Pigment preparations | Gerd Schmitz, Michael Kressner, Udo Herrmann, Josef Leitermann | 1999-09-28 |
| 5936019 | Polyurethane-based thickener compositions and their use for thickening aqueous compositions | Jan Mazanek, Hermann Kober | 1999-08-10 |
| 5902357 | Composition for dyeing or printing textile materials | Martin Riegels, Uwe Vogt, Fritz Lesszinsky, Bernd Konemund, Torsten Groth +1 more | 1999-05-11 |
| 5840902 | Process for the preparation of beta-hydroxyalkypicolinium salts | Karlheinrich Meisel, Gerd-Friedrich Renner, Hans Schulze, Carsten Gerdes, Karl-Rudolf Gassen +2 more | 1998-11-24 |
| 5672674 | Anti-stain finishing of polyamide-containing fibre materials, compositions therefor and polyamide-containing fibre materials thus finished | Udo-Winfried Hendricks, Hans-Albert Ehlert | 1997-09-30 |
| 5441861 | Color photographic silver halide material | Beate Weber, Gunter Helling, Markus Geiger, Kaspar Wingender, Jorg Hagemann | 1995-08-15 |
| 5372610 | Process for the after-bleaching of dyed raw cellulose using cationic compounds | Volker Kahle, Klaus Kackstadter, Karl-Heinz Passon, Martin Riegels | 1994-12-13 |
| 5310855 | Aromatic condensation products | Udo-Winfried Hendricks, Hans-Albert Ehlert, Fritz Lesszinsky | 1994-05-10 |
| 4988463 | Foam suppressants | Karl-Heinz Breyer | 1991-01-29 |
| 4943299 | Levelling agents for disperse dyeing of polyester: ethoxylate or propoxylate of substituted phenol, emulsifier and carrier | Hans Schulze, Frank Bartkowiak, Karlhans Jakobs | 1990-07-24 |
| 4456554 | Ammonium compounds | Karl Schafer, Gunther Hoffarth, Hans Schulze | 1984-06-26 |
| 4402702 | Low-dust dyestuff formulations | Vaclay Kaspar, Hans-Heinz Molls, Reinhold Hornle, Rainer Skerhut | 1983-09-06 |
| 4385000 | Surface-active phosphonic acid esters | Wilfried Nolte, Friedhelm Muller | 1983-05-24 |
| 4369070 | Aqueous dyestuff or pigment dispersions | Volker Aign, Karlheinz Wolf, Reinhold Hornle, Norbert Pusch | 1983-01-18 |
| 4295852 | Process for dyeing polyamide fibres | Joachim Fiegel | 1981-10-20 |
| 4280960 | Phosphonic acid esters | Konrad Nonn, Karlheinz Wolf, Gunther Boehmke | 1981-07-28 |
| 4279614 | Process for dyeing polyester-containing materials | Hans Schulze, Karlhans Jakobs, Gunther Boehmke | 1981-07-21 |
| 4237268 | Esters of acylated aminocarboxylic acid containing compounds | Ergun Tamer | 1980-12-02 |