Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5575991 | Hair treatment composition containing polyvinylpyrrolidone and betaine amphoteric surfactant | Karl-Heinz Kischka, Jurgen Schmenger, Ernst Flemming | 1996-11-19 |
| 4855130 | Hair treating compositions and processes for improving the condition of hair | Eugen Konrad, Herbert Mager | 1989-08-08 |
| 4845204 | Cosmetic compositions on the basis of alkyl-hydroxypropyl-substituted chitosan derivatives, new chitosan derivatives and processes for the production thereof | Gunther Lang, Gerhard Maresch, Hans-Rudi Lenz, Eugen Konrad, Lothar Breuer | 1989-07-04 |
| 4752467 | Hair treatment agent and method for improving the conditon of hair | Eugen Konrad, Herbert Mager | 1988-06-21 |
| 4725282 | Oxidative hair dyeing composition based upon a carrier of low viscosity | Eugen Konrad, Gilbert Pasquier, Herbert Mager | 1988-02-16 |
| 4660580 | Process for the permanent shaping of the regrowth of hair and composition therefore | Theodor Wajaroff, Eugen Konrad | 1987-04-28 |