Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6603014 | Use of cyclic enamines as light protection agents | Frank Prechtl, Thomas Wunsch, Horst Westenfelder | 2003-08-05 |
| 6545174 | Cosmetic and pharmaceutical preparations containing photostable UV filters | Sylke Haremza, Volker Schehlmann, Horst Westenfelder, Thomas Wunsch, Michael Drogemuller +1 more | 2003-04-08 |
| 6541032 | Use of finely divided dye-containing polymers PD as color-imparting constituent in cosmetic compositions | Monika Medelnick, Ellen Pfrommer, Thorsten Clemens, Peter Erk, Arno Bohm +8 more | 2003-04-01 |
| 6524560 | Use of substituted vinyltetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents | Frank Prechtl, Horst Westenfelder, Thomas Wunsch | 2003-02-25 |