Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424062 | Method for permanently shaping hair | Gunther Lang, Thomas Clausen | 1995-06-13 |
| 4974447 | Method and apparatus for the shaping treatment of hair wound onto rollers, including human hair | Rupert Zang | 1990-12-04 |