William C. Schwarzel

Person

Billerica, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Heat and radiation-sensitive imaging medium, and processes for use...
- Patent number 6,258,505
- Issue date Jul 10, 2001
- Polaroid Corporation
- Jayprakash C. Bhatt
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Heat and radiation-sensitive imaging medium, and processes for use...
- Patent number 6,054,246
- Issue date Apr 25, 2000
- Polaroid Corporation
- Jayprakash C. Bhatt
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Lithographic plate with disperse particulate rubber additive
- Patent number 5,853,958
- Issue date Dec 29, 1998
- Polaroid Corporation
- Chieh-Min Cheng
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Lithographic printing plates with dispersed rubber additives
- Patent number 5,616,449
- Issue date Apr 1, 1997
- Polaroid Corporation
- Chieh-Min Cheng
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photoreaction quenchers in on-press developable lithographic printi...
- Patent number 5,599,650
- Issue date Feb 4, 1997
- Polaroid Corporation
- Daoshen Bi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Low-volatility, substituted 2-phenyl-4,6-bis (halomethyl)-1,3,5-tri...
- Patent number 5,561,029
- Issue date Oct 1, 1996
- Polaroid Corporation
- Maurice J. Fitzgerald
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Synthesis of photoreactive polymeric binders
- Patent number 5,556,924
- Issue date Sep 17, 1996
- Polaroid Corporation
- Maurice J. Fitzgerald
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Synthesis of photoreactive polymeric binders
- Patent number 5,514,522
- Issue date May 7, 1996
- Polaroid Corporation
- Maurice J. Fitzgerald
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilization of thermal images
- Patent number 5,206,208
- Issue date Apr 27, 1993
- Polaroid Corporation
- Rong C. Liang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photographic compounds
- Patent number 4,946,964
- Issue date Aug 7, 1990
- Polaroid Corporation
- Roger A. Boggs
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic system utilizing a compound capable of providing contr...
- Patent number 4,743,533
- Issue date May 10, 1988
- Polaroid Corporation
- Roger A. Boggs
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrolyzable diffusion control layers in photographic products
- Patent number 4,547,451
- Issue date Oct 15, 1985
- Polaroid Corporation, Patent Dept.
- Stanley J. Jasne
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Diffusion control layers for diffusion transfer photographic film
- Patent number 4,391,895
- Issue date Jul 5, 1983
- Polaroid Corporation
- William C. Schwarzel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polymeric hydroxamic acid polyvalent metal salt interlayer for phot...
- Patent number 4,352,871
- Issue date Oct 5, 1982
- Polaroid Corporation
- Lloyd D. Taylor
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

William C. Schwarzel

Person

Patents Grantslast 30 patents

Heat and radiation-sensitive imaging medium, and processes for use...

Heat and radiation-sensitive imaging medium, and processes for use...

Lithographic plate with disperse particulate rubber additive

Lithographic printing plates with dispersed rubber additives

Photoreaction quenchers in on-press developable lithographic printi...

Low-volatility, substituted 2-phenyl-4,6-bis (halomethyl)-1,3,5-tri...

Synthesis of photoreactive polymeric binders

Synthesis of photoreactive polymeric binders

Stabilization of thermal images

Photographic compounds

Photographic system utilizing a compound capable of providing contr...

Hydrolyzable diffusion control layers in photographic products

Diffusion control layers for diffusion transfer photographic film

Polymeric hydroxamic acid polyvalent metal salt interlayer for phot...