Patents by Inventor John L. Hendrix

John L. Hendrix 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).

  • Palladium (II) octaethylporphine alpha-isothiocyanate as a phosphorescent label for immunoassays
    Patent number: 5464741
    Abstract: A phosphorescence assay system. The phosphorescent label for immunoassays is palladium (II) octaethylporphine alphaisothiocyanate. The labeling agent has a Stokes shift of not less than 150 nanometers. Method for preparing the palladium (II) phosphorescent label is also shown.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: November 7, 1995
    Assignee: Henwell, Inc.
    Inventor: John L. Hendrix
  • Fluorescent chlorophyll labeled assay reagents
    Patent number: 4707454
    Abstract: A fluora immuno assay system. A fluorescent labeled assay reagent is prepared by conjugating an assay reagent with a fluorescent labeling agent. The fluorescent labeling agent is a chlorophyll or a porphyrin having a Stokes shift of not less than 150 nanometers. Apparatus for detecting the presence of the labeling agent comprising an excitation source illuminating a vessel with a photodetector directly within the illuminated area is also shown. The photodetector is insensitive to the spectrum of the excitation source.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: November 17, 1987
    Assignee: Bio-Diagnostics, Inc.
    Inventor: John L. Hendrix