Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5840902 | Process for the preparation of beta-hydroxyalkypicolinium salts | Karlheinrich Meisel, Klaus Walz, Gerd-Friedrich Renner, Carsten Gerdes, Karl-Rudolf Gassen +2 more | 1998-11-24 |
| 5762651 | Dustproofing agents | Horst Brandt, Thomas O. Nagel, Hans-Werner Petroll, Udo Herrmann | 1998-06-09 |
| 5171476 | Preparation of emulsions or other multiphase formulations | Robert Bloodworth, Gunther Penners, Wolfgang Podszun, Jurgen Reiners | 1992-12-15 |
| 5053421 | Di-styrl-phenyl-triglycol ether as crystallization inhibitor | Heinz-Otto Horstmann, Ulrich Engelhardt, Karl Reizlein, Rolf-Jurgen Singer, Klaus Wangermann +3 more | 1991-10-01 |
| 4994089 | Carrier mixture for the dyeing of polyester materials: n-alkylphthalimide and aromatic ester or ether | Frank Bartkowiak, Wolf-Dieter Schroer, Gunther Boehmke, Karlhans Jakobs, Willi Schossler | 1991-02-19 |
| 4943299 | Levelling agents for disperse dyeing of polyester: ethoxylate or propoxylate of substituted phenol, emulsifier and carrier | Klaus Walz, Frank Bartkowiak, Karlhans Jakobs | 1990-07-24 |
| 4909853 | Pigment preparations | Martin Wienkenhover, Volker Paulat, Wolfgang Karnath, Karlheinz Wolf, Karl-Heinz Wieser | 1990-03-20 |
| 4824663 | Biocidal macroemulsions containing polyvinyl alcohol | Wolfgang Wirth, Heinz J. Niessen, John Goossens | 1989-04-25 |
| 4685950 | Process for improving the surface finish of glass foils | — | 1987-08-11 |
| 4456554 | Ammonium compounds | Klaus Walz, Karl Schafer, Gunther Hoffarth | 1984-06-26 |
| 4318832 | Aqueous dispersions of epoxide compounds | Karl Zabrocki, Franz Weider, Wolfgang Wellner, Wolfgang Schartau | 1982-03-09 |
| 4279614 | Process for dyeing polyester-containing materials | Klaus Walz, Karlhans Jakobs, Gunther Boehmke | 1981-07-21 |
| 4186029 | Aqueous dyestuff dispersions | Volker Aign, Fritz Bremer, Reinhold Hornle, Karlheinz Wolf, Wilhelm Berlenbach +1 more | 1980-01-29 |