Patents by Inventor Vadim Guliants

Vadim Guliants 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).

  • Vanadium/phosphorus oxide oxidation catalyst
    Patent number: 5401707
    Abstract: A vanadium/phosphorus oxide oxidation catalyst suitable for catalytic oxidation of C.sub.4 feed stock in the preparation of maleic anhydride is formed by calcining an intercalation complex of the formula VOHPO.sub.4 .multidot.0.5H.sub.2 O.multidot.({C.sub.n H.sub.2n+1 }--X).sub.z in which n has a value of from 0 to 20, z has a value of from about 1.5 to about 1.9; and X is an oxygen- or nitrogen-containing functional group operable to form hydrogen bonds with the structural P--OH and water groups of the complex.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: March 28, 1995
    Assignee: The Trustees of Princeton University
    Inventors: Jay B. Benziger, Vadim Guliants, Sankaran Sundaresan