Patents by Inventor Ruth Tor

Ruth Tor 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).

  • Stabilized enzymes
    Patent number: 4904592
    Abstract: Enzymes are stabilized by encagement in a double layer having a polyaldeh base coat linked to the amino groups of the enzyme, and an outer polymer coat crosslinked therewith. The outer coat is made of a polymer which in the unlinked state has free amino and/or acyl hydrazide groups.Optionally the stabilized enzyme is immobilized within a matrix.Processes for the preparation of the encaged and optionally immobilized enzymes are described.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: February 27, 1990
    Assignee: Ramot University For Applied Research & Industrial Development Ltd.
    Inventors: Amihay Freeman, Ruth Tor
  • Enzyme membranes for electrodes
    Patent number: 4659665
    Abstract: A film or membrane containing a biologically active protein such as an enzyme is prepared from a polymer substituted with acyl hydrazide groups. Preferably, the polymer is an acrylamide/methacrylamide copolymer in the ratio of about 70/30, and the film or membrane is about 30-100 microns thick. The film or membrane is prepared on an electrode and crosslinked to produce an enzyme electrode.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: April 21, 1987
    Assignee: Ramot University Authority for Applied Research and Industrial Development Ltd.
    Inventors: Amihay Freeman, Ruth Tor