Frans Leenhouts

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Kaiseraugst, CH

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystalline mixtures having a chiral tilted smectic phase
- Patent number 5,356,563
- Issue date Oct 18, 1994
- Hoffmann-La Roche Inc.
- Richard Buchecker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active compounds used for liquid crystalline mixtures
- Patent number 5,250,222
- Issue date Oct 5, 1993
- Hoffmann-La Roche Inc.
- Stephen Kelly
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Liquid crystalline mixtures having a chiral tilted smectic phase
- Patent number 5,244,597
- Issue date Sep 14, 1993
- Hoffmann-La Roche Inc.
- Richard Buchecker
- C07 - ORGANIC CHEMISTRY