Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676652 | Multiple pass optical system | Evgenia G. Barskaya, Galina P. Semenova | 1987-06-30 |
| 4626078 | Multiple pass optical matrix system | Evgenia G. Barskaya | 1986-12-02 |
| 4209232 | Multiple reflection optical system | — | 1980-06-24 |