Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8714074 | Length-adjustable piston cylinder unit comprising a safety device | Christian Eiletz | 2014-05-06 |
| 7467774 | Adjustable-height chair column | Walter Bohm, Helmut Kastner, Holger Knaust | 2008-12-23 |
| 7328875 | Adjustable-height chair column | Helmut Kastner | 2008-02-12 |