Patents by Inventor Shekhar Surramoney

Shekhar Surramoney 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).

  • Nickel-substituted and mixed nickel-and cobalt-substituted chromium oxide compositions, their preparation, and their use as catalysts and catalysts precursors
    Publication number: 20050227865
    Abstract: A crystalline alpha-chromium oxide where from about 0.05 atom % to about 2 atom % of the chromium atoms in the alpha-chromium oxide lattice are substituted by nickel atoms, and optionally, additional chromium atoms in the alpha-chromium oxide lattice are substituted by trivalent cobalt atoms (provided that the total amount of the nickel atoms and the trivalent cobalt atoms in the alpha-chromium oxide lattice is no more than 6 atom %) is disclosed. Also disclosed is a chromium-containing catalyst composition comprising as a chromium-containing component the crystalline substituted alpha-chromium oxide; and a method for preparing a composition comprising the crystalline substituted alpha-chromium oxide.
    Type: Application
    Filed: August 21, 2003
    Publication date: October 13, 2005
    Inventors: Mario Nappa, Velliyur Rao, H. Rosenfield, Shekhar Surramoney, Munirpallam Subramanian, Allen Sievert