Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820511 | Hair care and aftertreatment preparations | Horst Hoeffkes, Fritz Lange | 1989-04-11 |
| 4814101 | Zwitterionic polymers and their use in hair treatment preparations | Ludwig Schieferstein, Horst Hoeffkes, Kurt Seidel, Peter Busch | 1989-03-21 |
| 4803068 | Hair-treatment preparation for improved wet combability | Uwe Ploog, Peter Busch, Klaus Thiele, Horst Hoffkes | 1989-02-07 |
| 4795632 | Preparations for washing and rinsing hair | Horst Hoeffkes | 1989-01-03 |