Patents by Inventor Rose M. Cernosek

Rose M. Cernosek 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).

  • Stable two-part chromogen substrate
    Patent number: 5215885
    Abstract: A two part peroxide/chromogen reagent for use in peroxidase labeled binding assays which is stable for at least about 24 hours is disclosed. The reagent is provided as two components, the first component preferably incorporating a peroxide dissolved in a first solvent, and the second component preferably having a chromogenic substance dissolved in a second solvent where the two components can be mixed within about 48 hours of colorimetric detection of an enzyme immunoassay.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: June 1, 1993
    Assignee: Beckman Instruments, Inc.
    Inventors: David J. Marrujo, Rose M. Cernosek, Patrick F. Coleman, Charles C. Walbourn