Patents by Inventor Robert Nicholas Gourley

Robert Nicholas Gourley 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).

  • Photographic elements containing certain yellow dye-forming couplers
    Patent number: 5693458
    Abstract: The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a dye-forming coupler of formula (I): ##STR1## wherein X is H or a coupling-off group, R.sub.1 is H or a substituent group; Y and Z are the same or different and are H or are independently selected from alkyl, aryl and heteroaryl groups; provided that Y and Z taken together with the nitrogen atom may form a 5-10 membered heterocyclic ring.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: December 2, 1997
    Assignee: Eastman Kodak Company
    Inventors: Bernard Arthur Clark, Robert Nicholas Gourley, Hamish McNab, Craig Cameron Sommerville
  • Dyes from trifluoromethyl-2-aminobenzothiazole diazo components
    Patent number: 4052379
    Abstract: Azo dyes having the general formula: ##STR1## wherein R.sub.1 represents a substituent selected from the group consisting of hydrogen, methyl, ethyl, methoxy, ethoxy, halogen, nitro, acetyl, carbomethoxy, carboethoxy, cyano and thiocyanate, and A is an aniline, 1,2,3,4-tetrahydroquinoline or benzomorpholine coupling component, may be used as conventional disperse dyes on polyester, polyamide, acrylic, triacetate and other synthetic fabrics, and some are particularly suitable for use in the transfer printing of polyesters and polyamides.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: October 4, 1977
    Assignee: Eastman Kodak Company
    Inventor: Robert Nicholas Gourley