Patents by Inventor Ralph H. Munch

Ralph H. Munch 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).

  • Hydraulic pressure device utilizing biodegradable halogenated diphenyl methanes
    Patent number: 4260506
    Abstract: Biodegradable functional fluids useful as dielectric fluids, heat transfer fluids, hydraulic fluids, plasticizers or dye solvents comprise at least one halogenated diphenylmethane compound represented by the structure ##STR1## where each X is individually chlorine, bromine or fluorine; n is a whole number from 1 to 4; each R is individually an alkyl group having from 1 to 5 carbon atoms; and m is zero or a whole number from 1 to 3.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: April 7, 1981
    Assignee: Monsanto Company
    Inventors: Ralph H. Munch, Quentin E. Thompson
  • Capacitor and dielectric impregnant composition therefor
    Patent number: 3948787
    Abstract: Electrical capacitors are impregnated with liquid dielectric compositions comprising mixtures of diaryl sulfones and esters of carboxylic acids.
    Type: Grant
    Filed: December 12, 1973
    Date of Patent: April 6, 1976
    Assignee: Monsanto Company
    Inventor: Ralph H. Munch
  • Dielectric composition for impregnating electrical capacitors
    Patent number: 3948788
    Abstract: Electrical capacitors are impregnated with liquid dielectric compositions comprising mixtures of diaryl sulfones and halogen-free aromatic organic compounds.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: April 6, 1976
    Assignee: Monsanto Company
    Inventor: Ralph H. Munch