Roberta R. Luhowy

Follow

Person

Newton, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dye substituted cyclic 1,3-sulfur-nitrogen compounds as dye image-f...
- Patent number 4,098,783
- Issue date Jul 4, 1978
- Polaroid Corporation
- Ronald F. W. Cieciuch
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Diffusion transfer elements comprising color-providing compounds ca...
- Patent number 4,060,417
- Issue date Nov 29, 1977
- Polaroid Corporation
- Ronald F. W. Cieciuch
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY