Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11761201 | Partition wall | Carola Eva Marianne Zwick, Roland Rolf Otto Zwick | 2023-09-19 |
| 11166569 | Chair | Carola Zwick, Roland Zwick | 2021-11-09 |
| 10653249 | Chair | Carola Zwick, Roland Zwick | 2020-05-19 |
| 10301819 | Wall element | Carola Zwick, Roland Zwick | 2019-05-28 |
| D471370 | Task chair | Claudia Plikat, Nicolai Neubert, Carola Eva Marianne Zwick, Roland Rolf Otto Zwick | 2003-03-11 |
| D471042 | Back for a seating structure | Claudia Plikat, Neubert Nicolai, Carola Zwick, Roland Zwick | 2003-03-04 |
| 6053588 | Workstation | Franz Biggel | 2000-04-25 |
| 6048044 | Collapsible workstation | Franz Biggel | 2000-04-11 |
| D385429 | Foldable workstation | Franz Biggel | 1997-10-28 |
| 5366274 | Synchronous adjusting device for office chairs or the like | Hans Roericht, Horst Fleischmann, Franz Biggel | 1994-11-22 |
| 5251958 | Synchronous adjusting device for office chairs or the like | Hans Roericht, Horst Fleischmann, Franz Biggel | 1993-10-12 |