Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6068835 | Cosmetic compositions for hair treatment containing dendrimers or dendrimer conjugates | Michael Franzke, Karin Steinbrecht, Thomas Clausen, Sabine Baecker | 2000-05-30 |
| 4835266 | Cosmetic compositions based upon n-hydroxypropyl-chitosans, new n-hydroxypropyl-chitosans, as well as processes for the production thereof | Gunther Lang, Gerhard Maresch, Harald Wendel, Eugen Konrad, Hans-Rudi Lenz | 1989-05-30 |
| 4780310 | Cosmetic compositions based upon N-hydroxypropyl-chitosans, new N-hyroxypropyl-chitosans, as well as processes for the production thereof | Guther Lang, Gerhard Maresch, Harald Wendel, Eugen Konrad, Hans-Rudi Lenz | 1988-10-25 |