Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8993093 | Coated sheet-like plastic material with reduced tendency to colonization by algae, process for the in-line production thereof and use | Thomas Hasskerl, Wolfgang Scharnke, Jann Schmidt, Xin Lu, Uwe Schneider | 2015-03-31 |
| 5870233 | Process for manufacture of fresnel lenses | Volker Benz, Udo Fischer, Hans Lorenz, Michael Meier-Kaiser | 1999-02-09 |
| 5656209 | Process for manufacture of Fresnel lenses | Volker Benz, Udo Fischer, Hans Lorenz, Michael Meier-Kaiser | 1997-08-12 |