Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656209 | Process for manufacture of Fresnel lenses | Volker Benz, Martin Berkenkopf, Hans Lorenz, Michael Meier-Kaiser | 1997-08-12 |
| 5624068 | Diamond tools for rock drilling, metal cutting and wear part applications | Mats Waldenstrom, Lars H. Hillert, Mahlon D. Dennis | 1997-04-29 |