Alexander V. Ivashchenko

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Moscow, RU

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Patents Grantslast 30 patents

Information Patent Grant
Ferroelectric liquid crystal cell
- Patent number 5,770,109
- Issue date Jun 23, 1998
- Rolic AG
- Leonid A. Beresnev
- G02 - OPTICS
Information Patent Grant
Ferroelectric liquid crystal cell
- Patent number 5,676,880
- Issue date Oct 14, 1997
- Rolic AG
- Leonid A. Beresnev
- G02 - OPTICS