Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6582019 | Tilt assembly for a chair | Robert W. Insalaco, Neubert Nicolai, Johann Burkhard Schmitz, Carola Zwick, Roland Zwick | 2003-06-24 |
| D471370 | Task chair | Burkhard Schmitz, Nicolai Neubert, Carola Eva Marianne Zwick, Roland Rolf Otto Zwick | 2003-03-11 |
| D471042 | Back for a seating structure | Burkhard Schmitz, Neubert Nicolai, Carola Zwick, Roland Zwick | 2003-03-04 |