Richard L. Cournoyer

Person

Waltham, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Thermal imaging dye precursors
- Patent number 5,424,475
- Issue date Jun 13, 1995
- Polaroid Corporation
- Roger A. Boggs
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal imaging methods and materials
- Patent number 5,350,870
- Issue date Sep 27, 1994
- Polaroid Corporation
- Roger A. Boggs
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal imaging methods and materials
- Patent number 5,236,884
- Issue date Aug 17, 1993
- Polaroid Corporation
- Roger A. Boggs
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal imaging method
- Patent number 5,192,645
- Issue date Mar 9, 1993
- Polaroid Corporation
- Roger A. Boggs
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Xanthene compounds
- Patent number 4,429,142
- Issue date Jan 31, 1984
- Polaroid Corporation
- Richard L. Cournoyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic products and processes with a pH sensitive xanthene li...
- Patent number 4,345,017
- Issue date Aug 17, 1982
- Polaroid Corporation
- Richard L. Cournoyer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Xanthene compounds
- Patent number 4,311,847
- Issue date Jan 19, 1982
- Polaroid Corporation
- Richard L. Cournoyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Xanthene compounds
- Patent number 4,307,017
- Issue date Dec 22, 1981
- Polaroid Corporation
- Richard L. Cournoyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel xanthene compounds and photographic products and processes em...
- Patent number 4,304,834
- Issue date Dec 8, 1981
- Polaroid Corporation
- Richard L. Cournoyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sulfo-substituted-3,6-di(N-indolinyl)-9-sulfonamidophenyl-xanthenes
- Patent number 4,290,950
- Issue date Sep 22, 1981
- Polaroid Corporation
- Richard L. Cournoyer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Novel xanthene compounds and photographic products and processes em...
- Patent number 4,258,119
- Issue date Mar 24, 1981
- Polaroid Corporation
- Richard L. Cournoyer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Richard L. Cournoyer

Person

Patents Grantslast 30 patents

Thermal imaging dye precursors

Thermal imaging methods and materials

Thermal imaging methods and materials

Thermal imaging method

Xanthene compounds

Photographic products and processes with a pH sensitive xanthene li...

Xanthene compounds

Xanthene compounds

Novel xanthene compounds and photographic products and processes em...

Sulfo-substituted-3,6-di(N-indolinyl)-9-sulfonamidophenyl-xanthenes

Novel xanthene compounds and photographic products and processes em...