Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6891038 | Photochromic spiro(indoline)naphthoxazines | Valeri Krongauz, Alexander Aizikovich, Vladimir Tchernoivanov | 2005-05-10 |
| 6627121 | Photochromic naphthopyran compounds | Valeri Krongauz, Emmanuel Lurie, Judith Ratner | 2003-09-30 |