Patents by Inventor Roger D. Philo

Roger D. Philo 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).

  • Simultaneous immunoassay of two analytes using dual enzyme labelled antibodies
    Patent number: 5108896
    Abstract: The present invention relates to dual analyte enzyme immunoassays for assaying two antigens in a single liquid sample wherein the two immunoreactions are carried out simultaneously and wherein subsequently the two enzyme reactions occur simultaneously. Suitable enzyme/substrate pairs are beta-galactosidase/nitrophenyl-beta-D-galactoside (p- an/or o-) and alkaline phosphatase/phenolphthalein monophosphate.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: April 28, 1992
    Assignee: Applied Research Systems ARS Holding N.V.
    Inventors: Roger D. Philo, Gerald J. Allen