Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560121 | Energy-efficient process for treating an object with a hot air flow and hand-held device for performing said process | Werner Fertig, Robert Schramm | 1996-10-01 |
| 5133372 | Hot air hair curling apparatus | Rupert Zang | 1992-07-28 |
| 4971081 | Hair curling rod having retractable bristles | Rupert Zang | 1990-11-20 |