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).
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Patent number: 4944791Abstract: 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: GrantFiled: December 14, 1988Date of Patent: July 31, 1990Assignee: Shell Internationale Research Maatschappij B.V.Inventors: Ludwig Schroder, Werner Stransky, Rudolf Mengel, Erich Raddatz, Sigmund Lust, Gerbert Linden, Gerhart Schneider
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Patent number: 4910200Abstract: 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: GrantFiled: October 9, 1986Date of Patent: March 20, 1990Assignee: Celamerck GmbH & Co. KGInventors: Jurgen Curtze, Helmut Pieper, Josef Nickl, Heinz-Manfred Becher, Guido Albert, Christo Drandarevski, Sigmund Lust, Ludwig Schroder
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Patent number: 4786317Abstract: 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: GrantFiled: September 5, 1986Date of Patent: November 22, 1988Assignee: Celamerck GmbH & Co. KGInventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Sigmund Lust
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Patent number: 4753934Abstract: 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: GrantFiled: September 29, 1986Date of Patent: June 28, 1988Assignee: Celamerck GmbH & Co. KGInventors: Josef Nickl, Helmut Pieper, Jurgen Curtze, Christo Drandarevski, Sigmund Lust
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Patent number: 4655824Abstract: 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: GrantFiled: June 13, 1984Date of Patent: April 7, 1987Assignee: Celamerck GmbH & Co. KGInventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Sigmund Lust
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Patent number: 4639438Abstract: 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: GrantFiled: March 12, 1986Date of Patent: January 27, 1987Assignee: Celamerck GmbH & Co. KGInventors: Richard Sehring, Wolfgang Buck, Ricarda Prokic-Immel, Sigmund Lust
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Patent number: 4523945Abstract: 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: GrantFiled: February 14, 1984Date of Patent: June 18, 1985Assignee: Celamerck, Gesellschaft mit beschrankter Haftung & Co. KGInventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Gerhart Schneider, Sigmund Lust
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Patent number: 4509972Abstract: 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: GrantFiled: March 28, 1983Date of Patent: April 9, 1985Assignee: Celamerck GmbH & Co. KGInventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Gerhart Schneider, Sigmund Lust
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Patent number: 4478852Abstract: 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: GrantFiled: May 12, 1982Date of Patent: October 23, 1984Assignee: Celamerck GmbH & Co. KG.Inventors: Heinz-Manfred Becher, Christo A. Drandarevski, Sigmund Lust
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Patent number: 4394159Abstract: 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: GrantFiled: March 13, 1981Date of Patent: July 19, 1983Assignee: Celamerck GmbH & Co. KGInventors: Wolfgang Buck, Richard Sehring, Gerbert Linden, Sigmund Lust
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Patent number: RE31717Abstract: 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: GrantFiled: September 9, 1983Date of Patent: October 30, 1984Assignee: Celamerck GmbH & Co. KGInventors: Wolfgang Buck, Richard Sehring, Gerbert Linden, Sigmund Lust