Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874554 | Quaternary ammonium compounds | Fritz Lange, Klaus Thiele | 1989-10-17 |
| 4867183 | Dispenser for hair cosmetics | Klaus Thiele | 1989-09-19 |
| 4830030 | Hair clip applicator for liquids and method | Klaus Thiele | 1989-05-16 |
| 4814101 | Zwitterionic polymers and their use in hair treatment preparations | Ludwig Schieferstein, Horst Hoeffkes, Kurt Seidel, Karl Giede | 1989-03-21 |
| 4803068 | Hair-treatment preparation for improved wet combability | Uwe Ploog, Klaus Thiele, Horst Hoffkes, Karl Giede | 1989-02-07 |