Hugh M. Williamson

Person

Hanwell, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Activated propenes as color couplers method for the production thereof
- Patent number 6,265,600
- Issue date Jul 24, 2001
- Eastman Kodak Company
- Hugh Martin Williamson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrazolo 1,5 a benzimidazole photographic color couplers
- Patent number 5,876,912
- Issue date Mar 2, 1999
- Eastman Kodak Company
- Michael William Crawley
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phenol substituted pyrazolo 1, 5-a benzimidazole couplers
- Patent number 5,776,669
- Issue date Jul 7, 1998
- Eastman Kodak Company
- Michael William Crawley
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic element containing a certain sulfonated acylacetanilid...
- Patent number 5,498,515
- Issue date Mar 12, 1996
- Eastman Kodak Company
- Paul B. Merkel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic color couplers and photographic materials containing them
- Patent number 5,470,696
- Issue date Nov 28, 1995
- Eastman Kodak Company
- Hugh M. Williamson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Imine dye and photographic elements containing same
- Patent number 5,466,813
- Issue date Nov 14, 1995
- Eastman Kodak Company
- Donald R. Diehl
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Activated propenes as color couplers and a method for production of...
- Patent number 5,460,927
- Issue date Oct 24, 1995
- Eastman Kodak Company
- Hugh M. Williamson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic element containing a certain sulfonated acylacetanilid...
- Patent number 5,451,493
- Issue date Sep 19, 1995
- Eastman Kodak Company
- Paul B. Merkel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Activated propenes as colour couplers
- Patent number 5,443,945
- Issue date Aug 22, 1995
- Eastman Kodak Company
- Hugh M. Williamson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic elements containing particular color couplers in combi...
- Patent number 5,437,962
- Issue date Aug 1, 1995
- Eastman Kodak Company
- Rakesh Jain
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing particular color couplers in combi...
- Patent number 5,436,124
- Issue date Jul 25, 1995
- Eastman Kodak Company
- Rakesh Jain
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing particular color couplers in combi...
- Patent number 5,434,041
- Issue date Jul 18, 1995
- Eastman Kodak Company
- Rakesh Jain
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing particular color couplers in combi...
- Patent number 5,434,040
- Issue date Jul 18, 1995
- Eastman Kodak Company
- Rakesh Jain
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing imine dyes
- Patent number 5,260,179
- Issue date Nov 9, 1993
- Eastman Kodak Company
- Donald R. Diehl
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hugh M. Williamson

Person

Patents Grantslast 30 patents

Activated propenes as color couplers method for the production thereof

Pyrazolo 1,5 a benzimidazole photographic color couplers

Phenol substituted pyrazolo 1, 5-a benzimidazole couplers

Photographic element containing a certain sulfonated acylacetanilid...

Photographic color couplers and photographic materials containing them

Imine dye and photographic elements containing same

Activated propenes as color couplers and a method for production of...

Photographic element containing a certain sulfonated acylacetanilid...

Activated propenes as colour couplers

Photographic elements containing particular color couplers in combi...

Photographic elements containing particular color couplers in combi...

Photographic elements containing particular color couplers in combi...

Photographic elements containing particular color couplers in combi...

Photographic elements containing imine dyes