Patents by Inventor Robert H. Purdy

Robert H. Purdy 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).

  • Methods, compositions, and compounds for allosteric modulation of the gaba receptor by members of the androstane and pregnane series
    Patent number: 5591733
    Abstract: Method, compositions, and compounds for modulating brain excitability to alleviate stress, anxiety, insomnia and seizure activity using certain steroid derivatives that act at a newly identified site on the gamma-aminobutyric acid receptor-chloride ionophore (GR) complex.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: January 7, 1997
    Assignee: University of Southern California
    Inventors: Michael B. Bolger, Kelvin W. Gee, Nancy C. Lan, Robert H. Purdy, Seid Mirsadeghi, Syed Hasan Tahir, Delia Belelli
  • Equilin hapten and assay method
    Patent number: 4379779
    Abstract: A hapten is obtained by replacing the 3-hydroxy group of equilin with HO--CO--A--O-- wherein A is an alkylene of one to six carbon atoms. The hapten is conjugated with an immunological carrier to provide an immunogen, which in turn produces a specific antiserum to equilin. The antiserum is used in a radioimmunoassay for equilin.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: April 12, 1983
    Assignee: American Home Products Corporation
    Inventors: Pemmaraju N. Rao, Robert H. Purdy, Perry H. Moore, Jr.