Ruth C. Bilofsky

Person

Lexington, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Optical device including birefringent polymer
- Patent number 4,525,413
- Issue date Jun 25, 1985
- Polaroid Corporation
- Howard G. Rogers
- G02 - OPTICS
Information Patent Grant
Optical device including birefringent polyhydrazide polymer
- Patent number 4,521,588
- Issue date Jun 4, 1985
- Polaroid Corporation
- Howard G. Rogers
- G02 - OPTICS
Information Patent Grant
Optical device including birefringent aromatic amino carboxylic aci...
- Patent number 4,520,189
- Issue date May 28, 1985
- Polaroid Corporation
- Howard G. Rogers
- G02 - OPTICS
Information Patent Grant
Optical device including birefringent polymer
- Patent number 4,446,305
- Issue date May 1, 1984
- Polaroid Corporation
- Howard G. Rogers
- G02 - OPTICS
Information Patent Grant
Variable density photographic transparencies
- Patent number 4,415,648
- Issue date Nov 15, 1983
- Polaroid Corporation
- Ruth C. Bilofsky
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magenta dye developers
- Patent number 4,386,216
- Issue date May 31, 1983
- Polaroid Corporation
- Louis Locatell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-receiving elements utilizing lamellar pigment materials
- Patent number 4,288,524
- Issue date Sep 8, 1981
- Polaroid Corporation
- Ruth C. Bilofsky
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver image stabilization
- Patent number 4,279,983
- Issue date Jul 21, 1981
- Polaroid Corporation
- Ruth C. Bilofsky
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic prints utilizing lamellar pigment materials
- Patent number 4,269,916
- Issue date May 26, 1981
- Polaroid Corporation
- Ruth C. Bilofsky
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magenta dye developers
- Patent number 4,264,701
- Issue date Apr 28, 1981
- Polaroid Corporation
- Louis Locatell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic products and processes employing lamellar pigments
- Patent number 4,216,018
- Issue date Aug 5, 1980
- Polaroid Corporation
- Ruth C. Bilofsky
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carbazole phthaleins
- Patent number 3,932,455
- Issue date Jan 13, 1976
- Polaroid Corporation
- Ruth C. Bilofsky
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Ruth C. Bilofsky

Person

Patents Grantslast 30 patents

Optical device including birefringent polymer

Optical device including birefringent polyhydrazide polymer

Optical device including birefringent aromatic amino carboxylic aci...

Optical device including birefringent polymer

Variable density photographic transparencies

Magenta dye developers

Image-receiving elements utilizing lamellar pigment materials

Silver image stabilization

Photographic prints utilizing lamellar pigment materials

Magenta dye developers

Photographic products and processes employing lamellar pigments

Carbazole phthaleins