Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10501477 | Photochromic thienochromene compounds | Jun Deng, Brian R. Stepp, Eric Spitler, Massimiliano Tomasulo, Robert W. Walters | 2019-12-10 |
| 10197707 | Ophthalmic devices comprising photochromic materials with reactive sub substituents | Barry Van Gemert, Shivkumar Mahadevan, Frank Molock | 2019-02-05 |