Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10370520 | Composition for the manufacture of an ophthalmic lens comprising an UV-absorber and an anti-yellowing additive | — | 2019-08-06 |
| 10308618 | Blue light cutting optical material comprising a benzotriazole UV absorber | Tipparat LERTWATTANASERI | 2019-06-04 |