Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7894175 | Non-intrinsically safely supplied measurement device | Wilhelm Florin, Helmut Brockhaus, Juergen Lehmkuhl | 2011-02-22 |
| 6875977 | Optoelectronic keypad and method for controlling an optoelectronic keypad | Jurgen Wolter, Detlef Ludwig | 2005-04-05 |