Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700566 | Heat resistant composite laminate | Michael Muller, Uwe Numrich, Horst Puhler, Wilhelm Wopker | 1997-12-23 |
| 5656209 | Process for manufacture of Fresnel lenses | Martin Berkenkopf, Udo Fischer, Hans Lorenz, Michael Meier-Kaiser | 1997-08-12 |