Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5831090 | Process for the preparation of photochromic compounds of the annelated spiroindoline2,3'! benzoxazine!type | Victor A. Paltchkov, Vladimir Minkin, Nadezhda Trofimova, Oleg A. Zoubkov | 1998-11-03 |