Patents by Inventor Charles Roy Donaho

Charles Roy Donaho 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).

  • Manganese tetrathiotungstate material
    Patent number: 8597608
    Abstract: The present invention is directed to a manganese tetrathiotungstate composition.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: December 3, 2013
    Assignee: Shell Oil Company
    Inventors: Michael Anthony Reynolds, Charles Roy Donaho
  • Nano-tetrathiometallate or nano-tetraselenometallate material
    Patent number: 8530370
    Abstract: The present invention is directed to a composition comprising a solid material comprised of a first metal/metalloid comprised of a metal or metalloid selected from the group consisting of Cu, Fe, Ag, Co, Mn, Zr, Zn, Sn, Re, Rh, Ru, Pd, Ir, Pt, B, Al, Ce, La, Pb, Cd, Sb, Ge, Ga, In, Bi, and Au; and a second metal selected from molybdenum, tungsten, or vanadium, where the first metal/metalloid and the second metal form a bimetallic tetrathiometallate or a bimetallic tetraselenometallate with sulfur or with selenium. The solid material is comprised of particles and has a particle size distribution, where the mean particle size of the particle size distribution is from about 50 nm to about 5 ?m.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 10, 2013
    Assignee: Shell Oil Company
    Inventors: Charles Roy Donaho, Michael Anthony Reynolds
  • NANO-TETRATHIOMETALLATE OR NANO-TETRASELENOMETALLATE MATERIAL
    Publication number: 20110177336
    Abstract: The present invention is directed to a composition comprising a solid material comprised of a first metal/metalloid comprised of a metal or metalloid selected from the group consisting of Cu, Fe, Ag, Co, Mn, Zr, Zn, Sn, Re, Rh, Ru, Pd, Ir, Pt, B, Al, Ce, La, Pb, Cd, Sb, Ge, Ga, In, Bi, and Au; and a second metal selected from molybdenum, tungsten, or vanadium, where the first metal/metalloid and the second metal form a bimetallic tetrathiometallate or a bimetallic tetraselenometallate with sulfur or with selenium. The solid material is comprised of particles and has a particle size distribution, where the mean particle size of the particle size distribution is from about 50 nm to about 5 ?m.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 21, 2011
    Inventors: Charles Roy Donaho, Michael Anthony Reynolds
  • MANGANESE TETRATHIOTUNGSTATE MATERIAL
    Publication number: 20110177334
    Abstract: The present invention is directed to a manganese tetrathiotungstate composition.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 21, 2011
    Inventors: Michael Anthony REYNOLDS, Charles Roy Donaho
  • Gel-free process for making hydrogenated functionalized anionically polymerized polymers
    Patent number: 6242537
    Abstract: This invention relates to a gel-free process for making hydrogenated functionalized polymers that mitigates the problem of ionic gel.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: June 5, 2001
    Assignee: Shell Oil Company
    Inventors: Robert Charles Bening, Carl Lesley Willis, Charles Roy Donaho, Daniel Earl Goodwin, Zaida Diaz, John David Wilkey