William J. Cumming

Person

North Chelmsford, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electroluminescent devices comprising polymers, and processes for t...
- Patent number 5,571,626
- Issue date Nov 5, 1996
- Polaroid Corporation
- William J. Cumming
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electroluminescent polymers, processes for their use, and electrolu...
- Patent number 5,414,069
- Issue date May 9, 1995
- Polaroid Corporation
- William J. Cumming
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electroluminescent devices comprising polymers, and processes for t...
- Patent number 5,376,456
- Issue date Dec 27, 1994
- Polaroid Corporation
- William J. Cumming
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal compounds having chiral ester head groups
- Patent number 5,141,669
- Issue date Aug 25, 1992
- Polaroid Corporation
- Iris B. K. Bloom
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Liquid crystal compounds having ether tail moiety
- Patent number 5,132,041
- Issue date Jul 21, 1992
- Polaroid Corporation
- William J. Cumming
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Thiazolidinylethylchlorocarbonates
- Patent number 4,634,773
- Issue date Jan 6, 1987
- Polaroid Corporation
- William J. Cumming
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mixtures of nematic liquid crystal materials
- Patent number 4,147,656
- Issue date Apr 3, 1979
- Itek Corporation
- Ralph E. Aldrich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Mixtures of nematic liquid crystal materials
- Patent number 4,090,975
- Issue date May 23, 1978
- Itek Corporation
- Ralph E. Aldrich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

William J. Cumming

Person

Patents Grantslast 30 patents

Electroluminescent devices comprising polymers, and processes for t...

Electroluminescent polymers, processes for their use, and electrolu...

Electroluminescent devices comprising polymers, and processes for t...

Liquid crystal compounds having chiral ester head groups

Liquid crystal compounds having ether tail moiety

Thiazolidinylethylchlorocarbonates

Mixtures of nematic liquid crystal materials

Mixtures of nematic liquid crystal materials