Patents by Inventor Stephan Jeanne Bongaerts

Stephan Jeanne Bongaerts has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Diffusion transfer process using silver halide emulsions with 90% chloride and high binder to silver halide ratios

Patent number: 3985561

Abstract: A process for producing continuous tone images on an image-receiving material in a diffusion transfer process.

Type: Grant

Filed: June 20, 1974

Date of Patent: October 12, 1976

Assignee: AGFA-GEVAERT N.V.

Inventors: Louis Maria De Haes, Leon Louis Vermeulen, Hugo Karel Gevers, Stephan Jeanne Bongaerts, Paul Desire Van Pee, Werner Krafft

Diffusion transfer process using silver halide emulsions with 90% chloride and high binder to silver halide ratios