Patents by Inventor Wolfgang Krätschmer

Wolfgang Krätschmer 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