Patents by Inventor Wilbert J. Humphlett

Wilbert J. Humphlett 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).

  • Composition and method for treating differentiated carcinoma or melanoma cells with thiapyrylium dyes
    Patent number: 4774250
    Abstract: There are described an anti-cancer composition and a method of treating differentiated carcinomas or melanoma, Featuring a suitable carrier and particular 2,4,6-tri(aryl or heteroaryl) thiapyrylium dyes.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: September 27, 1988
    Assignee: Dana Farber Cancer Institute
    Inventors: Lan Bo Chen, Wilbert J. Humphlett
  • Dry heat-activated bleaching of silver images
    Patent number: 4168169
    Abstract: A dry, activator sheet for a dry, thermal silver dye bleach process comprises a support having thereon a non-volatile, diffusible acid, a substituted heterocyclic thiazoline, oxazoline, imidazoline or imidazolidine silver halide complexing agent and a non-hydrolyzable polymer vehicle having an effective pH up to 6.0 and a melting point lower than 200.degree. C. The activating sheet is useful to bleach a silver image containing a bleachable dye.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: September 18, 1979
    Assignee: Eastman Kodak Company
    Inventors: Wilbert J. Humphlett, Rowland G. Mowrey