Patents by Inventor George G. Maher

George G. Maher 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).

  • Flocculation of coals with water-soluble starch xanthates
    Patent number: 4253970
    Abstract: Powdered coals are rapidly flocculated from aqueous suspensions by the simple addition of water-soluble starch xanthate, thereby producing a readily recoverable sediment phase and a substantially clear aqueous phase.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: March 3, 1981
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: George G. Maher
  • Foamed and solid rubber-starch graft copolymer compositions and method of preparation
    Patent number: 4005040
    Abstract: Starch graft copolymers are prepared in aqueous media by reacting soluble sodium starch xanthate with a polymerizable vinyl monomer and hydrogen peroxide. Foamed rubbers reinforced with starch graft copolymers are prepared, without the need for mechanical frothing, by conducting the starch graft polymerization reaction in the latex emulsion. Nonfoamed rubber compositions are prepared in a similar manner.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: January 25, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: George G. Maher