Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366274 | Synchronous adjusting device for office chairs or the like | Hans Roericht, Franz Biggel, Burkhard Schmitz | 1994-11-22 |
| 5251958 | Synchronous adjusting device for office chairs or the like | Hans Roericht, Franz Biggel, Burkhard Schmitz | 1993-10-12 |
| 5178778 | Apparatus and method for separating immiscible liquid mixtures | Helmut Sachse, Konrad Schembra, Rudolf Griesshammer | 1993-01-12 |