Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7418360 | Project design method | Johannes Extra, Michael Franke | 2008-08-26 |
| 7139618 | Method of operation and a control program for a central unit in an automation system | Johannes Extra, Michael Franke, Hermann Jartyn | 2006-11-21 |