Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7060109 | Hair dyeing agents containing indigo derivatives | Horst Hoeffkes, Karin Nelles | 2006-06-13 |
| 6790239 | Agent for coloring keratin containing fibers | Doris Oberkobusch, Horst Hoeffkes | 2004-09-14 |
| 6770102 | Agent for dying keratin fibers | Doris Oberkobusch, Horst Hoeffkes | 2004-08-03 |
| 6755872 | Dyeing agent for keratinous fibers | Doris Oberkobusch, Horst Hoeffkes | 2004-06-29 |
| 6371993 | Utilization of onium aldehydes and onium ketones for dying fibers containing keratin | Horst Hoeffkes | 2002-04-16 |
| 6203579 | Use of 1-substituted isatins to dye fibers containing keratin | Horst Hoeffkes, Bernd Meinigke, David Rose | 2001-03-20 |
| 6147043 | Machine dishwashing detergents with silver protection | Helmut Blum, Christian Nitsch, Juergen Haerer | 2000-11-14 |
| 5743919 | Isatin derivatives for coloring keratin-containing fibers | Horst Hoeffkes | 1998-04-28 |
| 5662912 | Sugar monoacid amides in cosmetic preparations | Rolf Wachter | 1997-09-02 |
| 5616150 | Isatin-containing formulations for coloring keratin-containing fibers | Horst Hoeffkes | 1997-04-01 |
| 5611817 | Isatin derivatives for coloring keratin-containing fibers | Horst Hoeffkes | 1997-03-18 |
| 4942174 | Novel sebosuppressive compounds and preparations | Siegfried Wallat | 1990-07-17 |
| 4939171 | Sebosuppressive topical preparations | Norbert Banduhn | 1990-07-03 |
| 4874579 | Acylated 3-amino-1,2,4-triazoles as corrosion inhibitors for non-ferrous metals | Karl Schmid, Josef Penninger | 1989-10-17 |
| 4833147 | Sebosuppressive compositions and method for suppressing sebaceous gland activity | Siegfried Wallat | 1989-05-23 |
| 4828568 | Oxidation hair-dyeing preparations | Guenther Konrad, Edgar Lieske | 1989-05-09 |
| 4745200 | Method of producing salts of 1,3-dioxolane-4-carboxylic acids and method of using same | — | 1988-05-17 |
| 4726943 | Anti-caries composition | Hans-Juergen Klueppel, Walter Ploeger | 1988-02-23 |
| 4705682 | Oligopeptide derivatives, their production and their use as surfactants gentle to the skin | Ulrich Zeidler | 1987-11-10 |
| 4684665 | Sebosuppressive benzoic acid ester derivatives and cosmetic preparations containing them | Siegfried Wallat | 1987-08-04 |
| 4683244 | Sebosuppressive cosmetic preparations containing alkoxy or alkylbenzyloxy benzoic acids or their salts | Siegfried Wallat | 1987-07-28 |
| 4668705 | Sebosuppressive preparations containing alkoxyaryl alkanols | Siegfried Wallat | 1987-05-26 |
| 4613622 | Sebosuppressive preparations containing benzyl alcohol derivatives | Siegfried Wallat | 1986-09-23 |
| 4608368 | 1-hydroxy-1,1-diphosphonic acids and cytostatic use thereof | Helmut Blum, Wolfgang Greb, Dietrich Schmaehl, Harald Schnegelberger, Hannsjoerg Sinn +1 more | 1986-08-26 |