Patents Represented by Attorney Thomas V. Michaelis

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  • Process for decaffeinating coffee
    Patent number: 4322445
    Abstract: The invention involves a process for the decaffeination of coffee, wherein--usually moistened--coffee is exposed to a circulating medium essentially composed of a compressed gas and an entrainer; this medium is subjected to partial condensation of the caffeine containing entrainer, in the absence of decompression; the caffeine is recovered from the condensate by evaporation of the entrainer portion thereof, and the medium is recycled to the coffee for continued extraction of caffeine therefrom.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: March 30, 1982
    Inventors: Siegfried Peter, Gerd Brunner
  • Pesticide containing ignition inhibitor
    Patent number: 4213967
    Abstract: The invention provides a pesticide containing an aluminium or magnesium phosphide and an ignition inhibiting agent essentially consisting of at least one aromatic hydrocarbon which suppresses the tendency of phosphin evolved under the influence of e.g. atmospheric moisture, to self-ignite.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: July 22, 1980
    Assignee: Dr. Werner Freyberg, Chemische Fabrik Delitia Nachf.
    Inventors: Werner Praxl, Reiner Ehret