Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10859851 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Christopher Chapman Rich, Phillip Christopher Harvey | 2020-12-08 |
| 10850550 | Optical switch devices | Christopher Chapman Rich, Roger W. Phillips, John Michael Tamkin | 2020-12-01 |
| 10838218 | Optical structures providing dichroic effects | Roger W. Phillips, Christopher Chapman Rich | 2020-11-17 |
| 10795059 | Ultra thin Fresnel lenses and other optical elements | Christopher Chapman Rich | 2020-10-06 |