Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10502869 | Optical element with a porous low refractive index layer having a protection layer | Ramesh C. Kumar, John A. Wheatley, Michael L. Steiner, William F. Edmonds, Lan H. Liu +3 more | 2019-12-10 |
| 10379271 | Retroreflective articles including optically active areas and optically inactive areas | Michael Benton Free, Bimal V. Thakkar, Mieczyslaw H. Mazurek, Kenneth L. Smith, Suman K. Patel +1 more | 2019-08-13 |