Patents by Inventor Manfred Koch

Manfred Koch 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 the preparation of optically active 2-chloropropionic acid esters
    Patent number: 4408068
    Abstract: What is disclosed is a process for the preparation of optically active 2-chloropropionic acid esters by the decomposition of optically active 2-chlorosulfinoxypropionic acid esters in the presence of quaternary ammonium or phosphonium salts as catalysts.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: October 4, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Manfred Koch
  • Fungicidal thioglycolic acid anilides, processes for their manufacture and pesticidal compositions containing them
    Patent number: 4324799
    Abstract: The present invention relates to new thioglycolic acid anilides of the formula I ##STR1## R.sup.1 denotes (C.sub.1 -C.sub.4)alkyl, halogen, (C.sub.1 -C.sub.3)alkylthio, (C.sub.1 -C.sub.4)alkoxy or (C.sub.3 -C.sub.4)alkenyl,R.sup.2 denotes hydrogen, (C.sub.1 -C.sub.4) alkyl or halogen,R.sup.3, R.sup.4 and R.sup.6 denote hydrogen or methyl,R.sup.5 denotes hydroxy, (C.sub.1 -C.sub.4)alkoxy, (C.sub.1 -C.sub.3)alkylthio, (C.sub.1 -C.sub.2)alkoxy -(C.sub.1 -C.sub.2)alkoxy, amino, (C.sub.1 -C.sub.2)alkylamino or di(C.sub.1 -C.sub.2)alkylamino,Y represents oxygen or sulfur,R.sup.7 represents optionally substituted (C.sub.1 -C.sub.6)alkyl, (C.sub.3 -C.sub.6)cycloalkyl, (C.sub.3 -C.sub.4)alkenyl or (C.sub.3 -C.sub.4)alkinyl,R.sup.8 represents hydrogen or (C.sub.1 -C.sub.4)alkyl,R.sup.9 denotes optionally substituted (C.sub.1 -C.sub.4)alkyl, (C.sub.3 -C.sub.4)alkenyl, furfuryl, tetrahydrofurfuryl, with the proviso that if Y=S, the radicals R.sup.8 and R.sup.9 do not both denote (C.sub.1 -C.sub.4)alkyl,R.sup.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: April 13, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Koch, Hilmar Mildenberger, Burkhard Sachse
  • Process for the preparation of phenoxypropionic acids and their alkali metal salts
    Patent number: 4309547
    Abstract: Process for the preparation of (phenoxy- or benzyl-)-phenoxypropionic acids by simultaneous addition of 2-chloropropionic acid (ester) and the double molar amount of an aqueous alkali hydroxide to a solution of a phenoxyphenol or benzylphenol in a solvent forming an azeotropic mixture with water, while continuously distilling off the water formed or introduced.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: January 5, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Koch, Hans J. Nestler
  • Mandrel for a ball winding machine
    Patent number: 4300727
    Abstract: A mandrel for winding yarn having a plurality of sets of articulated arms rotatable about a central axis. Each set of arms is movable radially between a first position in which the sets define a generally cylindrically shape of small diameter and second position defining a generally cylindrical shape of larger diameter. A plurality of fingers are arranged respectively between selective adjacent sets so as to define a generally cylindrical shape having a diameter intermediate the small and larger diameter.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: November 17, 1981
    Assignee: G & W Machinery Inc.
    Inventors: Manfred Koch, Ernst Bosshard
  • Process for the manufacture of (phenoxy or benzyl)-phenoxypropionic acid methyl esters
    Patent number: 4252980
    Abstract: (Phenoxy- or benzyl)-phenoxypropionic acid methyl esters are produced by esterification of the corresponding anhydrous alkali metal salts with half the molar amount of dimethyl sulfate at a temperature exceeding 120.degree. C.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: February 24, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Koch, Hilmar Mildenberger
  • Phenoxyphenoxy-propionic acid derivatives
    Patent number: 4227009
    Abstract: Phenoxyphenoxy-propionic acid derivatives of the formula ##STR1## exhibit an outstanding herbicidal activity against a wide variety of weed grasses and are well tolerated by dicotyledonous crop plants and various cereals.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: October 7, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Koch, Reinhard Handte, Gerhard Horlein, Heinrich Leditschke, Helmut Kocher, Peter Langeluddeke
  • Phenoxy-phenoxypropionic acid esters
    Patent number: 4175947
    Abstract: Phenoxy-phenoxypropionic acid derivatives of the formula ##STR1## wherein R is hydrogen or halogen, and R.sub.1 is substituted alkyl, cyclohexenyl, phenylalkenyl or (substituted) alkinyl, are interesting selective herbicides having a special activity against weed grasses. They are obtained for example by reaction of corresponding phenoxypropionic acid halides with hydroxy compounds of the formula HO--R.sub.1.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: November 27, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Koch, Reinhard Handte, Gerhard Horlein, Hermann Bieringer, Peter Langeluddeke