Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7667166 | Heat-generating element of a heating device | Michael Zeyen, Michael Niederer, Franz Bohlender | 2010-02-23 |
| 7576305 | Heat-generating element of a heating device | Michael Zeyen, Michael Niederer, Franz Bohlender | 2009-08-18 |
| 7012225 | Electric heating apparatus with housing | Franz Bohlender | 2006-03-14 |
| 4395345 | Free-flowing phosphate/silicate cogranulates containing hydrophobing substance(s) | Peter Dittmann, Hartmut Hohne | 1983-07-26 |
| 4283299 | Production of detergent compositions | Gert Becker, Johann U. Oesch, Horst Poeselt, Alan Digby Tomlinson | 1981-08-11 |