Patents by Inventor Klaus Thoma

Klaus Thoma 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: 4161528
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, halogen or lower alkyl, attached to the 3-, 4- or 5-positions of the phenyl ring,R.sub.3 is halogen, lower alkyl or lower alkoxy, attached to the 3- or 4-position of the phenyl ring, andR.sub.4 is hydrogen, halogen or lower alkyl, attached to the 4- or 5-position of the phenyl ring;Provided, however, that the two phenyl moieties are other than both 4-chloro- or 4-methyl-substituted at the same time; the compounds are useful as insecticides and acaricides.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: July 17, 1979
    Assignee: Celamerck GmbH & Co. KG.
    Inventors: Klaus Thomas, Walter Ost, Jurgen Curtze
  • Patent number: 4102910
    Abstract: Compounds of the formula ##STR1## wherein A is oxygen or --NH--, andR is straight or branched alkyl of 2 to 22 carbon atoms or straight or branched alkenyl of 3 to 18 carbon atoms,And acid addition salts thereof; the compounds as well as the salts are useful as acaricides.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: July 25, 1978
    Assignee: Celamerck GmbH & Co. KG.
    Inventors: Walter Ost, Klaus Thomas, Ricarda Prokic-Immel
  • Patent number: 4087533
    Abstract: Compounds of the formula ##STR1## wherein R is hydrogen, alkyl of 1 to 12 carbon atoms, mono- or di-halo(alkyl of 1 to 12 carbon atoms), phenoxy (alkyl of 1 to 12 carbon atoms), lower alkyl-phenoxy(alkyl of 1 to 12 carbon atoms), halo-phenoxy (alkyl of 1 to 12 carbon atoms), phenyl(alkyl of 1 to 12 carbon atoms), halo-phenyl(alkyl of 1 to 12 carbon atoms), lower alkyl-phenyl(alkyl of 1 to 12 carbon atoms), lower alkoxy-phenyl(alkyl of 1 to 12 carbon atoms), lower alkenyl, phenyl-lower alkenyl, phenyl, halo-phenyl, nitro-phenyl, lower alkoxy, furyl or cycloalkyl, andY is nitrogen or .dbd.CH--;the compounds are useful as fungicides.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: May 2, 1978
    Assignee: Celamerck GmbH & Co., KG
    Inventors: Jurgen Curtze, Klaus Thomas, Walter Ost, Christo Assenov Drandarewski
  • Patent number: 3982001
    Abstract: This invention provides new compounds of formula I, ##SPC1##wherein R.sub.1 and R.sub.2 are the same or different and are in each case hydrogen, halogen, lower alkyl, hydroxy or lower alkoxy R.sub.3 is hydrogen or lower acyl and A stands for groups of formula ##EQU1## wherein R.sub.5 and R.sub.6 are independently, hydrogen or methyl and n is 0, 1 or 2, useful as analgesic agents.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: September 21, 1976
    Assignee: Sandoz, Inc.
    Inventors: Wilhelm Heffe, Fritz Hunziker, Klaus Thoma
  • Patent number: 3975527
    Abstract: Agricultural plant protection compositions containing as an active ingredient racemic triforine or a mixture thereof with meso-forine, said mixture consisting of at least 60% by weight of racemic triforine and the balance meso-triforine; and a method of using the same for combatting phytopathogenic fungi.
    Type: Grant
    Filed: July 29, 1975
    Date of Patent: August 17, 1976
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Walter Ost, Klaus Thomas, Ekkehard Amadori, Rolf Darskus
  • Patent number: 3937712
    Abstract: Compounds of the formula ##SPC1##WhereinA is chlorine, alkoxy of 1 to 10 carbon atoms, dimethylamino-ethoxy or diethylamino-ethoxy, andR is hydrogen, alkyl of 1 to 4 carbon atoms or pyridyl;The compounds are useful as antimicrobial agents, especially against gramnegative microorganisms, for the treatment of infections of the intestinal and urogential tract.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: February 10, 1976
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Ludwig Schroder, Klaus Thomas, Hanns Goeth