Lal C. Vishwakarma

Person

Rochester, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Silver halide light sensitive emulsion layer having enhanced photog...
- Patent number 6,306,570
- Issue date Oct 23, 2001
- Eastman Kodak Company
- Anthony Adin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide light sensitive emulsion layer having enhanced photog...
- Patent number 6,054,260
- Issue date Apr 25, 2000
- Eastman Kodak Company
- Anthony Adin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Benzotriazole-based novel UV absorbers and photographic elements co...
- Patent number 5,814,438
- Issue date Sep 29, 1998
- Eastman Kodak Company
- Lal C. Vishwakarma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic element containing ultraviolet absorbing polymer
- Patent number 5,766,834
- Issue date Jun 16, 1998
- Eastman Kodak Company
- Tienteh T Chen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the preparation of binary sensitizing dyes
- Patent number 5,756,740
- Issue date May 26, 1998
- Eastman Kodak Company
- Lal Chand Vishwakarma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of synthesizing tert-amido-substituted 2-(2'-hydroxyphenyl)...
- Patent number 5,739,348
- Issue date Apr 14, 1998
- Eastman Kodak Company
- Lal Chand Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzotriazole-based UV absorbers and photographic elements containi...
- Patent number 5,683,861
- Issue date Nov 4, 1997
- Eastman Kodak Company
- Lal C. Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of benzotriazole derivatives
- Patent number 5,675,015
- Issue date Oct 7, 1997
- Eastman Kodak Company
- Lal Chand Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-hydroxyphenyl benzotriazole based UV absorbing polymers with part...
- Patent number 5,674,670
- Issue date Oct 7, 1997
- Eastman Kodak Company
- Lal Chand Vishwakarma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of synthesizing 2-(2'-hydroxyphenyl) benzotriazole compounds
- Patent number 5,670,654
- Issue date Sep 23, 1997
- Eastman Kodak Company
- Lal Chand Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2'-hydroxyphenyl benzotriazole based UV absorbing polymers and phot...
- Patent number 5,610,000
- Issue date Mar 11, 1997
- Eastman Kodak Company
- Lal C. Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzotriazole based UV absorbing compounds and photographic element...
- Patent number 5,585,228
- Issue date Dec 17, 1996
- Eastman Kodak Company
- Lal C. Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzotriazole based uv absorbing monomers and photographic elements...
- Patent number 5,554,759
- Issue date Sep 10, 1996
- Eastman Kodak Company
- Lal C. Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzotriazole based UV absorbers and photographic elements containi...
- Patent number 5,500,332
- Issue date Mar 19, 1996
- Eastman Kodak Company
- Lal C. Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzotriazole based UV absorbing monomers and photographic elements...
- Patent number 5,455,152
- Issue date Oct 3, 1995
- Eastman Kodak Company
- Lal C. Vishwakarma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic elements incorporating polymeric ultraviolet absorbers
- Patent number 5,384,235
- Issue date Jan 24, 1995
- Eastman Kodak Company
- Tien-Teh Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dye compound and photographic element containing same
- Patent number 5,288,738
- Issue date Feb 22, 1994
- Eastman Kodak Company
- Lal C. Vishwakarma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Lal C. Vishwakarma

Person

Patents Grantslast 30 patents

Silver halide light sensitive emulsion layer having enhanced photog...

Silver halide light sensitive emulsion layer having enhanced photog...

Benzotriazole-based novel UV absorbers and photographic elements co...

Photographic element containing ultraviolet absorbing polymer

Process for the preparation of binary sensitizing dyes

Method of synthesizing tert-amido-substituted 2-(2'-hydroxyphenyl)...

Benzotriazole-based UV absorbers and photographic elements containi...

Process for the preparation of benzotriazole derivatives

2-hydroxyphenyl benzotriazole based UV absorbing polymers with part...

Method of synthesizing 2-(2'-hydroxyphenyl) benzotriazole compounds

2'-hydroxyphenyl benzotriazole based UV absorbing polymers and phot...

Benzotriazole based UV absorbing compounds and photographic element...

Benzotriazole based uv absorbing monomers and photographic elements...

Benzotriazole based UV absorbers and photographic elements containi...

Benzotriazole based UV absorbing monomers and photographic elements...

Photographic elements incorporating polymeric ultraviolet absorbers

Dye compound and photographic element containing same