Patents by Inventor Nikolaus Muller

Nikolaus Muller 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).

  • N-organooxycarbamic acid esters for combating endoparasites
    Patent number: 4914124
    Abstract: A method of combating endoparasites which comprises applying thereto or to an endoparasite habitat an endoparasiticidally effective amount of an N-organooxycarbamic acid ester of the formula ##STR1## in which R.sup.1 represents alkyl, cycloalkyl, alkenyl, alkinyl or aryl, which can optionally be substituted,R.sup.2 represents alkyl, alkenyl or alkinyl, which can optionally be substituted, andR.sup.3 represents alkyl, alkenyl or alkinyl, which can optionally be substituted.Those compounds wherein one of R.sup.2 and R.sup.3 is alkinyl are new.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: April 3, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Peter Andrews
  • Process for the sulphonation of aromatic compounds with sulphur trioxide
    Patent number: 4859372
    Abstract: A new process for the preparation of aromatic sulphonic acids, in which the sulphonation of the aromatic compounds is carried out with sulphur trioxide in organic solvents in the presence of hydrogen halide.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: August 22, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Behre, Heinz U. Blnak, Wilfried Kohler, Nikolaus Muller, Peter Schnegg
  • Pesticidal cyclic malonylphosphonic diamides
    Patent number: 4804655
    Abstract: Novel pesticidally active cyclic malonylphosphonic diamides of the formula ##STR1## in which X.sup. represents O or S,R.sup.1 represents alkyl, alkenyl, alkinyl, cycloalkyl, aryl or heteroaryl, each of which can be optionally substituted,R.sup.2 represents hydrogen, alkyl, aryl or aralkyl,R.sup.3 represents hydrogen, alkyl, aryl or aralkyl, andR.sup.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Gerhard Bonse, Peter Andrews, Wilhelm Stendel, Robert Steffens
  • Use of thiadiazinones for combating endoparasites
    Patent number: 4771048
    Abstract: The present invention relates to the use of thiadiazinones of the formula I ##STR1## in which R represents the radical of the formula ##STR2## wherein X.sup.1 represents O or S,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents optionally substituted phenyl,R.sup.2 represents hydrogen, alkyl, cycloalkyl, aryl or aralkylfor combating endoparasites in veterinary medicine and to new thiadiazinones of the formula I and the preparation thereof.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: September 13, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Peter Andrews
  • 3-carbamoyl-4-hydroxy-coumarins for combating parasitic heiminths
    Patent number: 4766144
    Abstract: 3-carbamoyl-4-hydroxy-couramins for combating parasitic helminths of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen, alkyl, NO.sub.2, CN or alkoxy,X represents O, S, SO or SO.sub.2R.sup.2 represents alkyl, halogenoalkyl, phenyl, naphthyl or pyridyl, which can optionally be substituted; or the radical -X-R.sup.2, together with the radical R.sup.3 can also form an alkylenedioxy (-O-alk-O), halogenoalkylenedioxy, oxyalkyleneoxyalkylene (-O-Alk-O-Alk-) or oxyhalogenoalkylene-oxyhalogenoalkylene bridge; andR.sup.3 and R.sup.4 independently of one another represent hydrogen, halogen, CN, OH, NO.sub.2, amino, mono- or dialklylamino, alkyl, halogenoalkyl, aralkyl or aryl, which can optionally be substituted,can be used for combating parasitic helminths.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: August 23, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Nikolaus Muller, Eckart Kranz, Peter Andrews