Witold J. Drzewinski

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Babice, PL

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal device and a liquid crystal material
- Patent number 6,919,950
- Issue date Jul 19, 2005
- Roman S. Dabrowski
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystalline ethane derivatives, their preparation and the li...
- Patent number 4,849,130
- Issue date Jul 18, 1989
- Wojskowa Akademia Techniczna
- Roman Dabrowski
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Liquid crystal device and a liquid crystal material
- Publication number 20020075445
- Publication date Jun 20, 2002
- Roman S. Dabrowski
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...