Patents by Inventor Edward C. Dawson

Edward C. Dawson 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).

  • Stabilization of peroxidase
    Patent number: 4331761
    Abstract: New and useful stable peroxidase compositions are disclosed which are particularly useful as reagents in enzyme immunoassay (EIA) tests. The novel peroxidase compositions contain polyvalent ions of groups 3 and 4 of the Periodic Table. These novel compositions are stable even in low peroxidase concentrations, and are relatively invulnerable to freeze-drying. Preferably, the polyvalent ions selected are those of Al, Zn, Mg, Fe, and Cu.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: May 25, 1982
    Assignee: Akzona Incorporated
    Inventors: Edward C. Dawson, Jan D. H. Homan, Bauke K. Van Weemen
  • Stabilization of peroxidase
    Patent number: 4228240
    Abstract: New and useful stable peroxidase compositions are disclosed which are particularly useful as reagents in enzyme immunoassay (EIA) tests. The novel peroxidase compositions contain polyvalent ions of groups 3 and 4 of the Periodic Table. These novel compositions are stable even at low concentrations of peroxidase, and are relatively invulnerable to freeze-drying. Preferably, the polyvalent ions selected are those of Al, Zn, Mg, Fe, and Cu.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: October 14, 1980
    Assignee: Akzona Incorporated
    Inventors: Edward C. Dawson, Jan D. H. Homan, Bauke K. Van Weemen
  • Stabilized peroxidase reagent for enzyme immunoassay
    Patent number: 4169012
    Abstract: New and useful stable peroxidase compositions are disclosed which are particularly useful as reagents in enzyme immunoassay (EIA) tests. The novel peroxidase compositions contain polyvalent ions of groups 3 and 4 of the Periodic Table. These novel compositions are stable even in low concentrations, and are relatively invulnerable to freeze-drying. Preferably, the polyvalent ions selected are those of Al, Zn, Mg, Fe, and Cu.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: September 25, 1979
    Assignee: Akzona Incorporated
    Inventors: Edward C. Dawson, Jan D. H. Homan, Bauke K. Van Weemen