Patents by Inventor Hubert Mayr

Hubert Mayr 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).

  • Patent number: 4726933
    Abstract: A high pressure mixing head for mixing reactive components in reaction injection molding includes a mixing chamber discharging into a quieting chamber and an injection valve for injecting reactive component into the mixing chamber. Recirculation passages for the reactive component are provided in the mixing chamber and internally of the injection valve. The recirculation passage internally of the injection valve is selectably opened and closed as is the outlet from the injection valve into the mixing chamber. Both the injection valve outlet and the recirculation passage internally of the injection valve are selectably throttleable.
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: February 23, 1988
    Assignee: Admiral Equipment Company
    Inventors: Hubert Mayr, Shirley Leidal
  • Patent number: 3960541
    Abstract: The resistance of plants to environmental factors such drought is increased by treating the plants themselves, their seeds before sowing or the surrounding soil, before or after emergence of the plants, with compositions containing aliphatic epoxymonocarboxylic acids containing one to three epoxy groups and 6 to 22 carbon atoms or the salts, lower alkyl esters, lower polyhydroxyalkyl esters, amides, monoalkylamides and dialkylamides thereof as active ingredient.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: June 1, 1976
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Hubert Mayr, Elfriede Presoly, Ferdinand Weinrotter, Walter Muller, Gerhard Stern, Walter Mizzi Frohner, deceased
  • Patent number: 3953445
    Abstract: Phenylpyridazines of the general formula: ##SPC1##In which Hal is a chlorine or bromine atom, R is a straight-chain or branched alkyl group containing 1 to 18 carbon atoms or a phenyl group, and X and Y separately are oxygen or sulphur, but not both oxygen, a process for their preparation and herbicidal compositions containing them.
    Type: Grant
    Filed: June 17, 1974
    Date of Patent: April 27, 1976
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Rupert Schonbeck, Engelbert Kloimstein, Alfred Diskus, Engelbert Auer, Hubert Mayr
  • Patent number: 3932405
    Abstract: Phenylpyridazine compounds of the general formula ##SPC1##In which Hal is a chlorine or bromine atom and R is a straight-chain or branched alkyl group containing 2 to 20 carbon atoms when Hal is chlorine and 1 to 20 carbon atoms when Hal is bromine, or is the group --OR', wherein R' is an alkyl group of 1 to 18 carbon atoms which may be straight-chain or branched, and which have valuable herbicidal properties.
    Type: Grant
    Filed: November 14, 1973
    Date of Patent: January 13, 1976
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Rupert Schonbeck, Engelbert Kloimstein, Hubert Mayr, Alfred Diskus, Engelbert Auer