Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9463150 | Agent for coloring and/or lightening keratinic fibers without ammonia odor | Irmgard Bender, Mechtild Grunwald, Constanze Neuba, Norbert Schettiger, Sabine Babiel +3 more | 2016-10-11 |
| 5811386 | Clear surface-active mixtures containing anionic surfactant, APG, and temporarily cationic copolymer | Reinhard Mueller, Kurt Seidel, Detlef Hollenberg | 1998-09-22 |
| 5716418 | Coloring of keratin-containing fibers with preparations which contain alkyl glycosides and oxidation dye precursors | Iduna Matzik, Horst Hoeffkes, Detlef Hollenberg, Reinhard Mueller, Christa Schramm | 1998-02-10 |