Patents by Inventor Bryan Ronald Hinchcliffe

Bryan Ronald Hinchcliffe 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).

  • Dyestuff compositions
    Patent number: 3989449
    Abstract: A dyestuff composition comprising a dyestuff of the general formula (I): ##SPC1##in whichR and R.sup.1 are selected from the group consisting of identical and different hydrogen, lower alkyl, lower alkoxy, acyl, acyloxy and halogen radicals;And at least one further dyestuff having a synergistic effect on the dyeing properties of the dyestuff (I) said further dyestuff being selected from the group consisting of (I) but different from said first dyestuff and dyestuffs of general formula (II): ##SPC2##in whichR.sup.2 has the same meaning as R and R.sup.1.The dyestuff composition has utility in the dyeing of synthetic fibers, in particular polyester fibers.
    Type: Grant
    Filed: January 19, 1973
    Date of Patent: November 2, 1976
    Assignee: L. B. Holliday & Co. Limited
    Inventors: Leonard Fox Dixon, Bryan Ronald Hinchcliffe, Cyril Eric Vellins