Patents by Inventor Natalie S. Rudolph

Natalie S. Rudolph 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).

  • Chromogenic substrate to peroxidase enzymes
    Patent number: 5432285
    Abstract: A novel chromogenic substrate to peroxidase enzymes is provided which is comprised of a mixture of an adduct formed from a hydrozone and a dienophile, and an aromatic nucleophile. The mixture undergos an oxidative coupling in the presence of peroxidase enzymes and peroxides forming a purple indamine dye. The mixture is also stable and unaffected by oxygen of the air or by hydrogen peroxide.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: July 11, 1995
    Inventors: Spyros Theodoropulos, Natalie S. Rudolph, James E. Woiszwillo
  • Chromogenic substrate to peroxidase enzymes
    Patent number: 5215890
    Abstract: A novel chromogenic substrate to peroxidase enzymes is provided which is comprised of a mixture of an adduct formed from a hydrozone and a dienophile, and an aromatic nucleophile. The mixture undergos an oxidative coupling in the presence of peroxidase enzymes and peroxides forming a purple indamine dye. The mixture is also stable and unaffected by oxygen of the air or by hydrogen peroxide.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: June 1, 1993
    Inventors: Spyros Theodoropulos, Natalie S. Rudolph, James E. Woiszwillo