Patents by Inventor Richard E. Hoffmann

Richard E. Hoffmann 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).

  • Selected C-10 perfluorinated hydrocarbons for liquid ventilation and artificial blood
    Patent number: 6167887
    Abstract: Perfluorinated alkylcyclohexane and alkyl cyclopentane derivatives of the empirical formula C10F20 boil at atmospheric pressure in the range of 144-146° C. and are utilized as mediums for gas transport in liquid ventilation and in artificial blood. Compounds of the C10F20 formula which can exist only as a single stereoisomer are preferred as mediums for gas transport.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: January 2, 2001
    Assignee: Synthetic Blood International, Inc.
    Inventors: Leland C. Clark, Richard E. Hoffmann