Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10383446 | Chair | Claudia Plikat, Carola Eva Marianne Zwick, Roland Rolf Otto Zwick | 2019-08-20 |
| 10165862 | Support structure for saddle-form seat surface | Carola Zwick, Roland Zwick | 2019-01-01 |