Patents by Inventor Arnoldus C. Grosscurt
Arnoldus C. Grosscurt 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: 5164396Abstract: The invention relates to new barbituric acid derivatives of the general formula ##STR1## wherein R is a substituted or unsubstituted phenyl group or heteroaryl group having 5 or 6 ring atoms, the heteroaryl group comprising one or more hetero atoms selected from the group consisting of N, O and S, and the substituents being selected from the group consisting of halogen, cyano, nitro, formyl, acetyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy and optionally substituted phenoxy;R.sub.1 is a C.sub.3 -C.sub.5 alkyl group, a C.sub.3 -C.sub.5 alkenyl group, a C.sub.3 -C.sub.5 alkynyl group, a cyclopropyl group or a cyclopropyl(C.sub.1 -C.sub.4)alkyl group, andR.sub.2 is a C.sub.1 -C.sub.4 alkyl group or an amino group;as well as salts and metal complexes of the said compounds.These compounds may be used in compositions for the control of insects, in particular aphids, in agriculture, horticulture and silviculture.Type: GrantFiled: May 1, 1991Date of Patent: November 17, 1992Assignee: Duphar International Research B.V.Inventors: Arnoldus C. Grosscurt, Jan W. Terpstra
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Patent number: 4783485Abstract: The invention relates to new benzoylurea compounds having insecticidal and acaricidal activity, of the general formula ##STR1## wherein R.sub.1 is a hydrogen atom or represents 1 or 2 halogen atoms;Ar is a para-phenylene group or a para-pyridylene group, which groups may be substituted with 1 or 2 substituents selected from the group consisting of chlorine, methyl and trifluoromethyl;B is an oxygen atom or represents a group having the formula ##STR2## wherein R.sub.Type: GrantFiled: September 26, 1986Date of Patent: November 8, 1988Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt, Roelof Van Hes
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Patent number: 4710516Abstract: The invention relates to an insecticidal and acaricidal composition comprising a benzoylurea compound of the general formula ##STR1## wherein R.sub.1 is a halogen atom,R.sub.2 is a hydrogen atom, a methoxy group or a halogen atom,R.sub.3 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of halogen, methyl and trifluoromethyl,R.sub.4 is a hydrogen atom or represents 1-3 substituents which are selected from the group consisting of halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkyl and C.sub.1 -C.sub.4 haloalkoxy,X is an oxygen atom or a sulphur atom,n is 0 or 1, andR.sub.5 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.2 -C.sub.6 alkenyl group or a C.sub.3 -C.sub.6 cycloalkyl group,with the proviso, that, if n is 0 and R.sub.5 is a hydrogen atom, R.sub.3 is a hydrogen atom.The composition may be used for the control of insects and/or mites in a dosage of 1 to 5,000 grams of active substance per hectare.Type: GrantFiled: November 19, 1986Date of Patent: December 1, 1987Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
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Patent number: 4665235Abstract: The invention relates to new benzoylurea compounds of the general formula ##STR1## wherein R.sub.1 is a halogen atom,R.sub.2 is a hydrogen atom or a halogen atom,R.sub.3 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine, methyl and trifluormethyl,R.sub.4 is a hydrogen atom or represents 1-3 substituents which are selected from the group consisting of halogen, and alkyl, alkoxy, haloalkyl and haloalkoxy, having 1-4 carbon atoms,X is N or CH,n is 0 or 1, andR.sub.5 is a hydrogen atom, an alkyl group having 1-6 carbon atoms, an alkenyl group having 2-6 carbon atoms, or a cycloalkyl group having 3-6 carbon atoms, with the proviso, that, if n is 0 and R.sub.5 is a hydrogen atom, R.sub.3 is a hydrogen atom.The compounds have an insecticidal and acaricidal activity. After having been processed to compositions, the compounds may be used for the control of insects and/or mites in a dosage of 1 to 5000 grams of active substance per hectare.Type: GrantFiled: January 19, 1984Date of Patent: May 12, 1987Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
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Patent number: 4656193Abstract: The invention relates to new benzoylurea compounds of the general formula ##STR1## wherein R.sub.1 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of halogen and alkyl and haloalkyl having 1-4 carbon atoms,R.sub.2 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine, methyl and trifluoromethyl, andR.sub.3 is a hydrogen atom or represents 1-3 alkyl and/or alkenyl groups each having 1-6 and/or 2-6 carbon atoms respectively,or wherein R.sub.3 together with the cyclohexyl ring to which it is attached forms a bi- or polycyclic hydrocarbyl group having 8-14 carbon atoms and, if desired, substituted with 1-3 alkyl groups each having 1-4 carbon atoms.The compounds have an insecticidal and acaricidal activity. After having been processed to compositions, the compounds may be used for the control of insects and/or mites in a dosage from 1 to 5000 g of active substance per hectare.Type: GrantFiled: September 20, 1985Date of Patent: April 7, 1987Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt, Roelof van Hes
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Patent number: 4609676Abstract: The invention relates to new benzoylurea compounds of the general formula ##STR1## wherein R.sub.1 is a halogen atom,R.sub.2 is a hydrogen atom or a halogen atom,R.sub.3 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine, methyl and trifluoromethyl,R.sub.4 is a hydrogen atom, an alkyl group having 1-6 carbon atoms or a cycloalkyl group having 3-6 carbon atoms,R.sub.5 is a hydrogen atom or an alkyl group having 1-4 carbon atoms, andA is a phenyl group or a heteroaryl group having 1 or 2 nitrogen atoms, which groups may be substituted with 1-3 substituents which are selected from the group consisting of halogen, and alkyl, alkoxy, haloalkyl and haloalkoxy having 1-4 carbon atoms.The compounds have an insecticidal and acaricidal activity. After having been processed to compositions, the compounds may be used for control of insects and/or mites in a dosage from 1 to 5000 g of active substance per hectare.Type: GrantFiled: July 26, 1985Date of Patent: September 2, 1986Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
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Patent number: 4572914Abstract: The invention relates to new pyrazoline derivatives and to insecticidal compositions on the basis of the compounds.The compositions can be used for controlling insects in a dosage from 0.01 to 1 kg of active substance per hectare.Type: GrantFiled: June 27, 1980Date of Patent: February 25, 1986Assignee: Duphar International Research B.V.Inventors: Roelof van Hes, Arnoldus C. Grosscurt
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Patent number: 4567295Abstract: The invention relates to a composition active against mites, whitefly and thrips, which comprises, in addition to a liquid or solid inert carrier material, a benzoylurea compound of the general formula ##STR1## wherein R.sub.1 is hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine, methyl and trifluoromethyl,R.sub.2 is an alkyl group having 2-4 carbon atoms or a cycloalkyl group having 3 or 4 carbon atoms,R.sub.3 is a hydrogen atom or represents 1-3 substituents which are selected from the group consisting of halogen, and alkyl, alkoxy, haloalkyl and haloalkoxy having 1-4 carbon atoms,R.sub.4 and R.sub.5 are both fluorine atoms, or whereinR.sub.4 is a chlorine atom and R.sub.5 is a hydrogen atom, andX is an oxygen or sulphur atom.The composition may be used in a dosage of 10 to 5000 g of active substance per hectare.The invention further relates to pharmaceutical compositions comprising the above compounds.Type: GrantFiled: January 19, 1984Date of Patent: January 28, 1986Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
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Patent number: 4550202Abstract: The invention relates to new benzoylurea compounds of the general formula ##STR1## wherein R.sub.1 is a halogen atom,R.sub.2 is a hydrogen atom or a halogen atom,R.sub.3 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine, methyl and trifluoromethyl,R.sub.4 is a hydrogen atom, an alkyl group having 1-6 carbon atoms or a cycloalkyl group having 3-6 carbon atoms,R.sub.5 is a hydrogen atom or an alkyl group having 1-4 carbon atoms, andA is a phenyl group or a heteroaryl group having 1 or 2 nitrogen atoms, which groups may be substituted with 1-3 substituents which are selected from the group consisting of halogen, and alkyl, alkoxy, haloalkyl and haloalkoxy having 1-4 carbon atoms.The compounds have an insecticidal and acaricidal activity. After having been processed to compositions, the compounds may be used for control of insects and/or mites in a dosage from 1 to 5000 g of active substance per hectare.Type: GrantFiled: January 19, 1984Date of Patent: October 29, 1985Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
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Patent number: 4439440Abstract: The invention relates to new pyrazoline derivatives having insecticidal activity; the new compounds can be represented by the general formula ##STR1## wherein R is an alkoxycarbonyl group having 2 to 6 carbon atoms,X and Y are equal or different and represent hydrogen atoms or halogen atoms,and n is 2, 3 or 4.After having been processed to compositions, the compounds may be used for the control of insects in a dosage from 0.01 to 1 kg of active substance per hectare.Type: GrantFiled: May 7, 1982Date of Patent: March 27, 1984Assignee: Duphar International Research B.V.Inventors: Roelof van Hes, Arnoldus C. Grosscurt
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Patent number: 4399152Abstract: The invention relates to new benzoyl ureas of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hereafter defined. The invention also includes insecticidal compositions and the use thereof which contain the above compounds.Type: GrantFiled: December 14, 1981Date of Patent: August 16, 1983Assignee: Duphar International B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
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Patent number: 4379157Abstract: The invention relates to new sulphonyl compounds of the general formula ##STR1## wherein X is a halogen atom, a phenoxy group, or an alkyl group or alkoxy group having 1-4 carbon atoms and substituted, if desired, with halogen;R.sub.1 is a cyano group, andR.sub.2 is an amino group which, if desired, may be substituted with halogen, with one or two alkenyl groups or alkynyl groups having 2-6 carbon atoms or with one or two alkyl groups having 1-6 carbon atoms, which alkyl groups, together with the nitrogen atom to which they are bound, may form a saturated heterocyclic ring, which ring may also contain a second hetero atom selected from the group consisting of nitrogen, oxygen and sulphur, or which alkyl groups may be substituted with an alkoxy group, having 1-4 carbon atoms, or with a dialkylamino group having 2-6 carbon atoms the alkyl groups of which, together with the nitrogen atom to which they are bound, may form a saturated heterocyclic ring;or whereinR.sub.1 and R.sub.Type: GrantFiled: January 19, 1981Date of Patent: April 5, 1983Assignee: Duphar International Research B.V.Inventors: Roelof van Hes, Arnoldus C. Grosscurt, Wouter Balk
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Patent number: 4350706Abstract: The invention relates to new urea and thiourea compounds as insecticides.The compounds, after having been processed to compositions, can successfully be used to control insects in a dosage from 10 to 5000 g of active substance per hectare.Type: GrantFiled: June 27, 1979Date of Patent: September 21, 1982Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt