Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627121 | Photochromic naphthopyran compounds | Valeri Krongauz, Emmanuel Lurie, Alexandre Chif | 2003-09-30 |
| 5905148 | Photochromic spirooxazine polysiloxanes | Valeri Krongauz, Alexander Zelichonok, Frida Buchholz | 1999-05-18 |