Patents by Inventor Catherine T. Abrams

Catherine T. Abrams 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).

  • Patent number: 5334503
    Abstract: An extraction composition is described which is buffered to a pH from about 8 to about 11 and which contains from about 1 to about 10 weight percent of a water-soluble cationic surfactant which is a quaternary ammonium salt or a mixture thereof and from about 1 to about 10 weight percent of an anionic surfactant which has a sulfate anion having from 6 to 14 carbon atoms and an alkali metal or ammonium cation. The extraction composition is used to extract antigens from Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis or Prevotella intermedia. Extracted antigens are determined using immunological methods. The extraction composition can be supplied as part of a diagnostic test kit.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: August 2, 1994
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Snyder, Paul B. Contestable, Catherine T. Abrams, Elizabeth A. Grogan
  • Patent number: 5212061
    Abstract: Antigens extracted from one or more serotypes of a Bacteroides microorganism are rapidly and sensitively detected when directly bound to a water-insoluble substrate. The bound antigens are detected by forming an immunological complex on the substrate when the antigen reacts with the appropriate antibody. The antibody-antigen complex can be detected directly or by means of a second antibody which is directed to the Bacteroides antibody. The entire assay can be carried out at room temperature in less than about 15 minutes.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: May 18, 1993
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Snyder, Paul B. Contestable, Catherine T. Abrams, Joseph J. Zambon, Homer S. Reynolds