Patents by Inventor Sigmund Lust

Sigmund Lust 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: 4944791
    Abstract: Novel cycloalkane-5.dbd.-spiro-hydantoins of formula ##STR1## wherein A is selected from the group consisting of ##STR2## and the remaining substituents are defined below having strong, selective herbicidal activity and novel intermediates and a process for their preparation.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: July 31, 1990
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Ludwig Schroder, Werner Stransky, Rudolf Mengel, Erich Raddatz, Sigmund Lust, Gerbert Linden, Gerhart Schneider
  • Patent number: 4910200
    Abstract: Compounds of the formula ##STR1## wherein A is ##STR2## B is ##STR3## R.sup.1 is hydrogen; halogen, cyano or optionally substituted C.sub.1-4 alkyl; andQ is NR.sup.8 R.sup.9 or ##STR4## where R.sup.2 to R.sup.11 are substituents of various types. The compounds are useful as fungicides.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: March 20, 1990
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Jurgen Curtze, Helmut Pieper, Josef Nickl, Heinz-Manfred Becher, Guido Albert, Christo Drandarevski, Sigmund Lust, Ludwig Schroder
  • Patent number: 4786317
    Abstract: Compounds of the formula ##STR1## wherein W and X, which may be identical to or different from each other, are each hydrogen, fluorine, chlorine, bromine, iodine, nitro, alkyl of 1 to 4 carbon atoms, fluoro-substituted alkyl of 1 to 4 carbon atoms or chloro-substituted alkyl of 1 to 4 carbon atoms;Y is hydrogen, fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms, fluoro-substituted alkyl of 1 to 4 carbon atoms or chloro-substituted alkyl of 1 to 4 carbon atoms;Z is fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms, fluoro-substituted alkyl of 1 to 4 carbon atoms, chloro-substituted alkyl of 1 to 4 carbon atoms, --COOH or --COO-(alkyl of 1 to 4 carbon atoms); andn is 0 or 1;and, when Z is COOH, salts thereof, especially their alkali metal salts. The compunds as well as the salts are useful as selective herbicides.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: November 22, 1988
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Sigmund Lust
  • Patent number: 4753934
    Abstract: Compounds of the formula ##STR1## wherein A, B, R.sub.1, X and Q are substituents of various types, and acid addition salts thereof. The compounds are useful as fungicides.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: June 28, 1988
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Josef Nickl, Helmut Pieper, Jurgen Curtze, Christo Drandarevski, Sigmund Lust
  • Patent number: 4655824
    Abstract: Compounds of the formula ##STR1## wherein W and X, which may be identical to or different from each other, are each hydrogen, fluorine, chlorine, bromine, iodine, nitro, alkyl of 1 to 4 carbon atoms, fluoro-substituted alkyl of 1 to 4 carbon atoms or chloro-substituted alkyl of 1 to 4 carbon atoms;Y is hydrogen, fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms, fluoro-substituted alkyl of 1 to 4 carbon atoms or chloro-substituted alkyl of 1 to 4 carbon atoms;Z is fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms, fluoro-substituted alkyl of 1 to 4 carbon atoms, chloro-substituted alkyl of 1 to 4 carbon atoms, --COOH or --COO-(alkyl of 1 to 4 carbon atoms); and n is 0 or 1;and, when Z is COOH, salts thereof, especially their alkali metal salts. The compounds as well as the salts are useful as selective herbicides.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: April 7, 1987
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Sigmund Lust
  • Patent number: 4639438
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 which may be identical to or different from each other, are each straight or branched alkyl of 1 to 3 carbon atoms;R.sub.3 is alkyl of 1 to 8 carbon atoms;X is sulfur or oxygen;Y is chlorine, bromine or fluorine; andn is 1 or 2.The compounds are useful as pesticides.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: January 27, 1987
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Richard Sehring, Wolfgang Buck, Ricarda Prokic-Immel, Sigmund Lust
  • Patent number: 4523945
    Abstract: Compounds of the formula ##STR1## wherein R', R", R.sub.1, R.sub.2, X.sub.1, X.sub.2, Y.sub.1, Y.sub.2 and Z are variable substituents of different types. The compounds are useful as herbicides and microbicides.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: June 18, 1985
    Assignee: Celamerck, Gesellschaft mit beschrankter Haftung & Co. KG
    Inventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Gerhart Schneider, Sigmund Lust
  • Patent number: 4509972
    Abstract: Compounds of the formula ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are substituents of diverse types, and salts thereof. The compounds as well as their salts are useful as herbicides.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: April 9, 1985
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Gerhart Schneider, Sigmund Lust
  • Patent number: 4478852
    Abstract: The present invention relates to new urea derivatives having pesticidal activity, particularly fungicidal activity. The urea derivatives, according to the invention, have the general formula ##STR1## wherein X, Y and Z represent hydrogen or halogen atoms and at least one of the substituents X, Y or Z is a halogen atom.
    Type: Grant
    Filed: May 12, 1982
    Date of Patent: October 23, 1984
    Assignee: Celamerck GmbH & Co. KG.
    Inventors: Heinz-Manfred Becher, Christo A. Drandarevski, Sigmund Lust
  • Patent number: 4394159
    Abstract: This invention is directed to 2-chloro-6-nitro-aniline compounds of the formula ##STR1## wherein A represents hydrogen, a straight or branched alkyl radical having from 1 to 6 carbon atoms a cycloalkyl radical having from 3 to 6 carbon atoms, a chlorine-substituted or hydroxyl-sustituted alkyl radical having from 2 to 6 carbon atoms, or an allyl or trifluoroacetyl group,B represents hydrogen or a methyl, ethyl, n-propyl, or isopropyl group, orA and B represent together an alkylene radical optionally interrupted by oxygen, .dbd.NH or, .dbd.NCH.sub.3, and having up to 5 members, or the group .dbd.CH-N(CH.sub.3).sub.2,R represents hydrogen, fluorine, chlorine, or bromine or a trifluoromethyl, methyl, or methoxy group, and X represents oxygen or sulphur,and novel herbicidal compositions containing these compounds as active ingredients.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: July 19, 1983
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Wolfgang Buck, Richard Sehring, Gerbert Linden, Sigmund Lust
  • Patent number: RE31717
    Abstract: This invention is directed to 2-chloro-6-nitro-aniline compounds of the formula ##STR1## wherein A represents hydrogen, a straight or branched alkyl radical having from 1 to 6 carbon atoms a cycloalkyl radical having from 3 to 6 carbon atoms, a chlorine-substituted or hydroxyl-substituted alkyl radical having from 2 to 6 carbon atoms, or an allyl or trifluoroacetyl group,B represents hydrogen or a methyl, ethyl, n-propyl, or isopropyl group, orA and B represent together an alkylene radical optionally interrupted by oxygen, .dbd.NH or, .dbd.NCH.sub.3, and having up to 5 members, or the group.dbd.CH--N(CH.sub.3).sub.2,R represents hydrogen, fluorine, chlorine, or bromine or a trifluoromethyl, methyl, or methoxy group, and X represents oxygen or sulphur,and novel herbicidal compositions containing these compounds as active ingredients.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: October 30, 1984
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Wolfgang Buck, Richard Sehring, Gerbert Linden, Sigmund Lust