Patents by Inventor Ronald E. Montgomery

Ronald E. Montgomery 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).

  • 1S to 1R Epimerizations of pyrethroid intermediates
    Patent number: 5840958
    Abstract: This invention relates to a process for preparing certain isomers of 2,2-dimethyl-3-(2,2-disubstitutedvinyl)cyclopropanecarboxylic acid or derivatives thereof. More specifically it relates to the epimerization of the 1S cyclopropanecarboxylic acid and its derivatives into the corresponding 1R isomers.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: November 24, 1998
    Assignee: FMC Corporation
    Inventors: Ronald E. Montgomery, Leland A. Smeltz
  • Pyrethroid intermediates and process
    Patent number: 4473709
    Abstract: A novel N,N,N-trimethyl-[1,1'-biphenyl]-2-methanaminium compound is subjected to a rearrangement reaction to give a 3-dimethylaminomethyl-2-methyl-[1,1'-biphenyl] compound which is then converted to the corresponding 3-halomethyl-2-methyl-[1,1'-biphenyl] compound. The halomethyl compound is an intermediate for pyrethroid and related insecticides having the alcohol moiety derived from a 2-methyl-[1,1'-biphenyl]-3-methanol.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: September 25, 1984
    Assignee: FMC Corporation
    Inventors: Ronald E. Montgomery, Ernest L. Plummer, Anthony J. Martinez
  • Detergent composition
    Patent number: 3959155
    Abstract: Improved anti-static compositions comprising an electrically conductive metal salt dispersed in a water-insoluble quaternary compound are employed in improved detergent compositions. Detergent-compatible fabric softeners, and detergent compositions containing same, comprising a smectite clay softener and the improved anti-static compositions are provided.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: May 25, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Ronald E. Montgomery, William I. Mullane, Jr., Francis L. Diehl, James Byrd Edwards