Patents by Inventor Mary Ollidene Weaver

Mary Ollidene Weaver 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).

  • Highly-absorbent starch-containing polymeric compositions
    Patent number: 3997484
    Abstract: Starch-containing polymer compositions are prepared which absorb amounts of water equaling up to more than 1000 times their own weight. The compositions find many applications including their incorporation into products such as disposable diapers, surgical pads and sheets, and paper towels.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: December 14, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Mary Ollidene Weaver, Edward B. Bagley, George F. Fanta, William M. Doane
  • Immobilization of enzymes with a starch-graft copolymer
    Patent number: 3985616
    Abstract: Enzymes are immobilized by entrappment or by covalent bonding with alkali saponified gelatinized-starch-polyacrylonitrile graft polymers. The polymers absorb amounts of water equaling up to more than 1000 times their own weight. In addition to immobilizing enzymes, the polymers find many applications including their incorporation into products such as disposable diapers, surgical pads and sheets, and paper towels.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: October 12, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Mary Ollidene Weaver, Edward B. Bagley, George F. Fanta, William M. Doane
  • Highly absorbent starch-containing polymeric compositions
    Patent number: 3981100
    Abstract: Starch-containing polymer compositions are prepared which absorb amounts of water equaling up to more than 1000 times their own weight. The compositions find many applications including their incorporation into products such as disposable diapers, surgical pads and sheets, and paper towels.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: September 21, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Mary Ollidene Weaver, Edward B. Bagley, George F. Fanta, William M. Doane
  • Method of reducing water content of emulsions, suspensions, and dispersions with highly absorbent starch-containing polymeric compositions
    Patent number: 3935099
    Abstract: Starch-containing polymer compositions are prepared which absorb amounts of water equaling up to more than 1000 times their own weight. The compositions find many applications including their incorporation into products such as disposable diapers, surgical pads and sheets, and paper towels.
    Type: Grant
    Filed: April 3, 1974
    Date of Patent: January 27, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Mary Ollidene Weaver, Edward B. Bagley, George F. Fanta, William M. Doane