Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9835875 | Method of calculation for detailed waverfront calculation for spectacle lenses with a diffractive grating | Wolfgang Becken, Gregor Esser, Helmut Altheimer, Stephan Trumm, Rainer Sessner +1 more | 2017-12-05 |