Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10077274 | UV-curing-compatible photochromic fused naphthopyrans | Udo Weigand, Herbert Zinner | 2018-09-18 |
| 9963574 | Photochromic fluorenopyrans with defined dibenzo[B,D]pyrano fused attachment | Udo Weigand, Herbert Zinner | 2018-05-08 |