Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4543425 | 1,3-Diamino-4-(2',2',2',-trifluoroethoxy)-benzene, method of producing the same, and hair coloring composition containing the same | Eugen Konrad, Hans-Jurgen Braun, Herbert Mager, Friedrich Noser | 1985-09-24 |