Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7188619 | Household food warmer | Wolfgang Bollmers, Michael Empting, Johannes Renne, Hartmut Wemhoener | 2007-03-13 |
| 6849835 | Household food warmer for keeping foods and beverages warm | Wolfgang Bollmers, Michael Empting, Johannes Renne, Hartmut Wemhoener | 2005-02-01 |