Patents by Inventor G. David Mendenhall

G. David Mendenhall 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).

  • Hydrocarbon fuel additives and method for preparing same
    Patent number: 4595784
    Abstract: A compound having the general formula R.sub.x COH[COR].sub.y, wherein R is a lower alkyl hydrocarbon radical, y is 0 or 1, and x is 2 when y is 1 and 3 when y is 0, is prepared by admixing carbon monoxide, a transition metal halide, and an organomonolithium compound or an anionic equivalent thereof.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: June 17, 1986
    Assignee: Board of Control of Michigan Technological University
    Inventors: G. David Mendenhall, Hsiang T. Chen
  • Method for preparing organic hyponitrites
    Patent number: 4460513
    Abstract: Tertiary organic hyponitrite usable as initiators for polymerizing ethylenically unsaturated compounds are prepared by reacting an alkali metal, alkaline earth, ammonium or substituted ammonium salt of hyponitrite, such as sodium hyponitrite, with a tertiary organic halide, such as tert-butyl chloride, in the presence of one or more weak Friedel-Crafts catalysts, such as ferric or zinc chloride, and in a solution of a neutral solvent.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: July 17, 1984
    Assignee: Board of Control of Michigan Technological University
    Inventor: G. David Mendenhall