Patents by Inventor Petrus S. Oud

Petrus S. Oud 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).

  • Thionin staining and imaging technique
    Patent number: 5168066
    Abstract: Cellular analysis in accordance with the invention involves staining cellular material with a thionin stain to distinguish the nuclear portion from the cytoplasm, counterstaining, illuminating the thionin-stained cellular material with energy in the infrared spectrum, and imaging the stained cellular material. The analysis can be automated or manual.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: December 1, 1992
    Assignee: Cytyc Corporation
    Inventors: David J. Zahniser, Daniel C. Lapen, Petrus S. Oud