Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6709057 | Chair, in particular office chair | Martin Potrykus | 2004-03-23 |
| 6692075 | Chair having a synchronously adjustable seat and backrest | Martin Potrykus, Peter Horn | 2004-02-17 |