Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11039123 | Faster state transitioning for continuous adjustable 3DEEPS filer spectacles using multi-layered variable tint materials | Ronald Steven Karpf | 2021-06-15 |
| 10951881 | Faster state transitioning for continuous adjustable 3Deeps filer spectacles using multi-layered variable tint materials | Ronald Steven Karpf | 2021-03-16 |