Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8001798 | Expansion valve, in particular for a cooling-medium system | Siegfried Roth, Albrecht Waldenburg | 2011-08-23 |
| 7849600 | Method of producing a valve arrangement for an expansion valve | Siegfried Roth, Albrecht Waldenburg, Jean-Jacques Robin, Ralf Winterstein, Klaus Kummerow | 2010-12-14 |