Patents by Inventor Harry Paul Leftin

Harry Paul Leftin 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).

  • Pyrolysis process for making fullerenes
    Patent number: 6083469
    Abstract: Solid fullerite, comprising a mixture of C.sub.60 and C.sub.70 fullerenes and higher molecular weight carbon nanotropes, is produced by high temperature, short residence time, pyrolysis of a mixture of hydrocarbons, containing at least two "but less than six" carbon atoms in their molecular structures, admixed with an inert gas comprising at least one member of the Group VIII-A elements of The Periodic Table of The Elements in a substantially reduced-metals free reactor comprised of a thermally stable ceramic or pyrolytic graphite.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: July 4, 2000
    Inventor: Harry Paul Leftin