Membership
Tour
Register
Log in
Leonid A. Beresnev
Follow
Person
Moscow, RU
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Electro-optical material having a lamellar liquid crystal structure
Patent number
6,181,407
Issue date
Jan 30, 2001
Deutsche Telekom AG
Wolfgang Dultz
G02 - OPTICS
Information
Patent Grant
Ferroelectric liquid crystal device for local reduction of light in...
Patent number
6,031,588
Issue date
Feb 29, 2000
Deutsche Telekom AG
Wolfgang Dultz
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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