Patents by Inventor Gyula Eifert
Gyula Eifert 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: 5072022Abstract: The invention relates to a novel herbicide composition, which comprises the (S) enantiomer or racemate of a compound of the general formula (I), ##STR1## wherein R stands for a methyl or ethyl group, as active ingredient in an amount of 0.01 to 95% by weight together with one or more solid and/or liquid carrier(s), preferably grist(s) of native or synthetic material(s) and/or with inert solvents(s), preferably xylene(s) and/or cyclohexanone; and optionally with surface active agents(s), preferably anionic and/or nonionic emulsifying or dispersing agent(s).The invention further relates to the above compounds of the general formula (I) as well as to a process for the preparation thereof.The compounds according to the invention possess an outstanding herbicidal effect (over 90%) and advantageous selectivity threshold values against cultivated plants.Type: GrantFiled: December 21, 1989Date of Patent: December 10, 1991Assignee: Budapest VegyimuvekInventors: Jozsef Bakos, Balint Heil, Imre Toth, Bela des, Istvan Gebhardt, Ferenc Bihari, Anna Durkonee Ponacz, Gyula Eifert, Jeno Kiraly, Eva Konok nee Horvath, Laszlo Lukacs, Agnes Meszaros nee Szekrenyesi, Bela Radvany, Lajos Sarosi
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Patent number: 5008440Abstract: A herbicide composition, which comprises (S)-1'-methoxycarbonylethyl 2-bromo-5-(2-chloro-4-trifluoromethylphenoxy) benzoate or (S)-1'-ethoxycarbonylethyl 2-bromo-5-(2-chloro-4-trifluoromethylphenoxy)benzoate as active ingredient in an amount of 0.01 to 95.0% by weight together with one or more solid and/or liquid carriers, preferably grists of native or synthetic materials; and/or with inert solvents, preferably xylenes and/or cyclohexanone; and optionally with surface active agents, preferably anionic and/or nonionic emulsifying or dispersing agents.Type: GrantFiled: December 21, 1989Date of Patent: April 16, 1991Assignee: Budapesti VegyimuvekInventors: Jozsef Bakos, Balint Heil, Imre Toth, Bela des, Istvan Gebhardt, Ferenc Bihari, Anna Durko nee Ponacz, Gyula Eifert, Jeno Kiraly, Eva Konok nee Horvath, Laszlo Lukacs, Agnes Meszaros nee Szekrenyesi, Bela Radvany, Lajos Sarosi
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Patent number: 4948420Abstract: The invention relates to new aryloxy phenoxy acyl malonates of the Formula I ##STR1## a process for the preparation thereof and herbicidal compositions comprising the same.In the Formula IR.sup.1 stands for hydrogen, halogen, trifluoromethyl, trifluoromethoxy or cyano;R.sup.2 represents hydrogen, halogen, or methyl; andR.sup.3 is C.sub.1-4 alkyl, and the R.sup.3 substitutents may be the same or different,X stands for --N.dbd. or --CH.dbd. andn is 0 or 1.The new compound of the Formula I possess valuable herbicidal properties.Type: GrantFiled: August 12, 1988Date of Patent: August 14, 1990Assignees: Budapesti Vegyimuvek, MTA Kozponti Mediai Kutato IntezetInventors: Tamas Komives, Ferenc Dutka, Istvan Barta, Istvan Jablonkai, Agnes Hulesch, Ferenc Bihari, Gyula Eifert, Peter Bohus, Katalin Tromfos, Agnes Meszaros nee Szekrenyesi, Istvan Kuronya
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Patent number: 4806151Abstract: According to the present invention there are provided fungicidal compositions comprising as active ingredient in an amount of 0.01-80% by weight a new benzoic acid derivative of the general Formula I ##STR1## wherein R.sub.1 and R.sub.2 stand for hydrogen, C.sub.1-8 alkyl, C.sub.2-8 alkenyl or benzyl;R.sub.3 represents hydrogen, C.sub.1-8 alkyl or C.sub.2-8 alkenyl;R.sub.1 and R.sub.2 may be the same or different; and R.sub.3 may be identical with or different from R.sub.1 and/or R.sub.2.According to the present invention there is provided a process for the preparation of the compounds of the general Formula I which comprises esterifying 4-chloro-3,5-dinitro-benzoic acid with a saturated or unsaturated aliphatic alcohol at a temperature between 20.degree. C. and 120.degree. C.--preferably at 60.degree.-100.degree. C.Type: GrantFiled: November 19, 1985Date of Patent: February 21, 1989Assignee: Budapesti VegyimuvekInventors: Peter Bohus, Ferenc Bihari, Marianna Kertesz nee Szabo, Istvan Kuronya, Peter Boros, Janos Szulagyi, Jeno Meszaros, Gyula Eifert, Agnes Meszaros nee Szekrenyes, Odon S. Jartoo, Laszlo Gondos
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Patent number: 4765825Abstract: The invention relates to new aryloxy phenoxy acyl malonates of the general Formula I ##STR1## a process for the preparation thereof and herbicidal compositions comprising the same.In the general Formula IR.sup.1 stands for hydrogen, halogen, trifluoromethyl, trifluoromethoxy or cyano;R.sup.2 represents hydrogen, halogen or methyl;R.sup.3 is C.sub.1-4 alkyl; and the R.sup.3 substituents may be the same or different,X stands for --N.dbd. or --CH.dbd. andn is 0 or 1.The compounds of the general Formula I may be prepared by reacting a compound of the general Formula II ##STR2## with a metal derivative of a malonate of the general Formula III ##STR3## or in the presence of a metal compound with a malonate of the general Formula III; or reacting a compound of the general Formula IV ##STR4## with a compound of the general Formula V; ##STR5## or reacting a compound of the general Formula VI ##STR6## with a compound of the general Formula VII ##STR7## (in which Formulae R.sup.1, R.sup.2, R.sup.Type: GrantFiled: September 23, 1986Date of Patent: August 23, 1988Assignees: Budapesti Vegyimuvek, MTA Kozponti Kemiai Kutato IntezetInventors: Tamas Komives, Ferenc Dutka, Istvan Barta, Istvan Jablonkai, Agnes Hulesch, Ferenc Bihari, Gyula Eifert, Peter Bohus, Katalin Tromfos, Agnes Meszaros nee Szekrenyesi, Istvan Kuronya
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Patent number: 4708733Abstract: The invention relates to new 4-chloro-aryloxy-acetyl- or 4-chloro-aryloxy-propionyl-malonates of the general Formula I, ##STR1## a process for the preparation thereof and herbicidal compositions comprising the same.In the general Formula IR.sup.1 stands for chlorine or methyl;R.sup.2 represents hydrogen or chlorine;R.sup.3 stands for hydrogen or methyl;R.sup.4 represents C.sub.1-4 alkyl and the two R.sup.4 groups may be identical or different; andX is --N.dbd. or --CH.dbd..The compounds of the general Formula I may be prepared by reacting a compound of the general Formula II ##STR2## with a metal derivative of a malonate of the general Formula III; ##STR3## or in the presence of an metal compound with a malonate of the general Formula III; or by reacting a compound of the general Formula IV ##STR4## with a compound of the general Formula V ##STR5## (in which Formulae R.sup.1, R.sup.2, R.sup.3, R.sup.4 and X are as stated above; Z stands for halogen and Y represents halogen, cyano or alkylcarbonyloxy).Type: GrantFiled: September 23, 1986Date of Patent: November 24, 1987Assignees: Budapesti Vegyimuvek, MTA Kozponti Kemiai I Kutato IntezetInventors: Tamas Komives, Ferenc Dutka, Istvan Barta, Istvan Jablonkai, Agnes Hulesch, Ferenc Bihari, Gyula Eifert, Peter Bohus, Mihaly Nagy, Gyorgy Bacskai, Istvan Kuronya
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Patent number: 4596893Abstract: The present invention relates to 2-trifluoro-methyl-4,6-dinitro-phenol and derivatives thereof prepared by hydrolyzing 2-chloro-3,5-dinitrobenzotrifluoride with an alkali hydroxide or alkaline earth metal hydroxide at elevated temperature in an aqueous medium without catalyst, 2-trifluoro-methyl-4,6-dinitro-phenol show herbicidal, acaricidal and crop regulating properties.Type: GrantFiled: May 23, 1985Date of Patent: June 24, 1986Assignee: Budapesti VegyimuvekInventors: Gyula Eifert, Ferenc Bihari, Istvan Magyari, Jeno Meszaros, Peter Inczedy, Judit Timar, Rudolf Czovek, Peter Bohus, Egon Klumpp, Erzsebet Schuszler