Patents by Inventor Georg Feth

Georg Feth 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).

  • Process for preparation of substituted formamidine and substituted N-iminomethyl piperidine
    Patent number: 4499274
    Abstract: An improved process for preparing fenoctimine, which is 4-(diphenylmethyl)-1-[(octylimino)methyl]piperidine by: (1) reacting dimethylformamide with dimethyl sulfate to form a complex; (2) reacting the resultant dimethylformamide/dimethyl sulfate complex with n-octylamine and optionally with dimethylamine; (3) thereafter treating the reaction with aqueous base to form N,N-dimethyl-N'-octyl-formamidine; and (4) reacting said formamidine, without need for further purification, with 4-(diphenylmethyl) piperidine to obtain 4-(diphenylmethyl)-1-[(octylimino)-methyl]piperidine.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: February 12, 1985
    Assignee: McNeilab, Inc.
    Inventors: Georg Feth, John E. Mills
  • 1-(2-Oxysubstituted-3-anilinopropyl)-imidazoles
    Patent number: 4215220
    Abstract: Compounds of the class of 1-(3-anilinopropyl)-imidazoles oxysubstituted in the 2-position having antimicrobial activity.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: July 29, 1980
    Assignee: Cilag-Chemie A.G.
    Inventors: Carl Richter, Georg Feth
  • Antimicrobial quaternary pyrazole derivatives
    Patent number: 4207326
    Abstract: Quaternary N-alkyl pyrazole derivatives and their method of preparation are described. The pyrazole derivatives are useful as antimicrobial agents.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: June 10, 1980
    Assignee: Cilag-Chemie A.G.
    Inventors: Carl Richter, Georg Feth