Patents by Inventor Donald R. Huffman

Donald R. Huffman 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).

  • Form of carbon
    Patent number: 8101149
    Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 24, 2012
    Assignee: Mitsubishi Corporation
    Inventors: Donald R. Huffman, Wolfgang Krätschmer
  • Form of carbon
    Patent number: 7976813
    Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 12, 2011
    Assignee: Mitsubishi Corporation
    Inventors: Donald R. Huffman, Wolfgang Krätschmer
  • Form of carbon
    Patent number: 7494638
    Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: February 24, 2009
    Assignee: Mitsubishi Corporation
    Inventors: Donald R. Huffman, Wolfgang Krätschmer
  • Form of carbon
    Patent number: 7473410
    Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: January 6, 2009
    Assignee: Mitsubishi Corporation
    Inventors: Donald R. Huffman, Wolfgang Krätschmer
  • Aerogel/fullerene hybrid materials for energy storage applications
    Patent number: 5698140
    Abstract: A hybrid material comprising an extremely porous, carbon-bearing substrate, such as a carbon-bearing aerogel, and fullerene molecules loaded in the pores of the substrate. The hybrid compound is obtained by several approaches, including chemical vapor infiltration of fullerenes into finished carbon-containing aerogels; infiltration of fullerenes during the solvent displacement step of aerogel preparation; and addition of fullerenes to solgel starting materials.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: December 16, 1997
    Assignee: The Arizona Board of Regents, on behalf of the University of Arizona
    Inventors: Lowell D. Lamb, Donald R. Huffman
  • Germicide and an improved method for killing bacteria, fungus and/or viruses
    Patent number: 4464398
    Abstract: An improved bactericide, fungicide and viricide comprising about three parts weight didecyl dimethyl ammonium chloride having the structural formula of: ##STR1## and about two parts weight of n-akyl (C14 50%, C12 40%, C16 10%) dimethyl ammonium chloride having the structural formula of: ##STR2## where R equals (C14 50%, C12 40%, C16 10%) In specific embodiments, the composition of the invention may include a non-ionic detergent, a detergent builder, diluents and/or other non-active ingredients. The method of the invention comprises bringing an inaminate article into contact with a solution of the improved germicidal composition of the invention in an appropriate use-dilution concentration. Totally surprising kills of bacteria, fungus and viruses when the improved germicidal composition is diluted with water, hard water, water in the presence of about 5% weight organic soil and hard water in the presence of 5% weight organic soil simultaneously.
    Type: Grant
    Filed: August 11, 1981
    Date of Patent: August 7, 1984
    Assignee: Huntington Laboratories, Inc.
    Inventors: Richard D. Sheets, Donald R. Huffman