Optical Shields, Inc.

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Menlo Park, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal light polarizer and method
- Patent number 5,486,940
- Issue date Jan 23, 1996
- Optical Shields, Inc.
- James L. Fergason
- G02 - OPTICS
Information Patent Grant
High speed optical protection using smectic liquid crystal
- Patent number 5,159,475
- Issue date Oct 27, 1992
- Optical Shields, Inc.
- James L. Fergason
- G02 - OPTICS
Information Patent Grant
Phenyl-pyrimidine liquid crystal materials
- Patent number 5,128,061
- Issue date Jul 7, 1992
- Optical Shields, Inc.
- Ying-yen Hsu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid crystal lens assembly for eye protection
- Patent number 5,074,647
- Issue date Dec 24, 1991
- Optical Shields, Inc.
- Jeffrey K. Fergason
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE