Donald H. Wadsworth

Person

Rochester, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Oxoindolizine and oxoindolizinium compounds useful as dyes
- Patent number 4,577,024
- Issue date Mar 18, 1986
- Eastman Kodak Company
- George L. Fletcher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Indolizinone dyes and compositions, elements and methods using same
- Patent number 4,450,093
- Issue date May 22, 1984
- Eastman Kodak Company
- George L. Fletcher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Recording and information record elements comprising oxoindolizine...
- Patent number 4,446,223
- Issue date May 1, 1984
- Eastman Kodak Company
- Donald H. Wadsworth
- G11 - INFORMATION STORAGE
Information Patent Grant
Indolizinone dyes and compositions, elements and methods using same
- Patent number 4,373,021
- Issue date Feb 8, 1983
- Eastman Kodak Company
- George L. Fletcher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic materials and processes comprising oxoindolizine and o...
- Patent number 4,368,247
- Issue date Jan 11, 1983
- Eastman Kodak Company
- George L. Fletcher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cyclopropenone vesicular imaging composition, element and process
- Patent number 4,128,422
- Issue date Dec 5, 1978
- Eastman Kodak Company
- George L. Fletcher
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Synthesis of aryl ethers of bis(hydroxymethyl) ether
- Patent number 4,021,475
- Issue date May 3, 1977
- Eastman Kodak Company
- Donald Harold Wadsworth
- C07 - ORGANIC CHEMISTRY

Donald H. Wadsworth

Person

Patents Grantslast 30 patents

Oxoindolizine and oxoindolizinium compounds useful as dyes

Indolizinone dyes and compositions, elements and methods using same

Recording and information record elements comprising oxoindolizine...

Indolizinone dyes and compositions, elements and methods using same

Photographic materials and processes comprising oxoindolizine and o...

Cyclopropenone vesicular imaging composition, element and process

Synthesis of aryl ethers of bis(hydroxymethyl) ether