Patents by Inventor Erzsebet Radvany
Erzsebet Radvany 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: 5110976Abstract: A process is disclosed for preparing a synergistic, crystalline product consisting of solely enantiomer pair 1RCisS and 1SCisR and enantiomer pair 1RTransS and 1STransR of cypermethrin in a 3:7 to 5:5 crystalline mixture, which comprises the steps of: (a) epimerizing an oily melt or a saturated solution of enantiomer pair 1RCisS and 1SCisR and enantiomer pair 1RTransS and 1STransR in a ratio other than 3:7 to 5:5, or a mixture of enantiomer pair 1RCisS and 1SCisR, enantiomer pair 1RTransS and 1STransR together with enantiomer pair 1RCisR and 1SCisS and enantiomer pair 1RTransR and 1STransS, said saturated solution including a protic or apolar, aprotic inert organic solvent by treating said oily melt or saturated solution with an organic or inorganic base at a temperature of -15.degree. C. to 30.degree. C.Type: GrantFiled: May 7, 1991Date of Patent: May 5, 1992Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.Inventors: Gyorgy Hidasi, Istvan Szekely, Bela Bertok, Sandor Zoltan, Lajos Nagy, Antal Gajari, Eva Somfai, Agnes Hegedus, Laszlo Pap, Rudolf Soos, Erzsebet Radvany, Sandor Botar, Tamas Szabolcsi
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Patent number: 5013754Abstract: According to the present invention there is provided a synergistic insecticidal composition containing more than one active ingredients and being harmless to environment characterized by comprising in an amount of from 0.001 to 99% by weight a synthetic pyrethroid of the Formula /I/ ##STR1## namely substantially only the 1RtransS and 1StransR entantiomer-pair /Ib/ out from the possible eight isomers--optionally in admixture with an amount of up to 100% by weight of one or more activator/s/ and auxiliary agent/s/, particularly antioxidants, stabilizing agents, wetting agents, emulsifying agents, dispersing agents, antifoam agents, diluents and/or fillers.The enantiomer-pair Ib consisting of the 1RtransS and 1StransR isomers is new and the invention also relates to the said new enantiomer-pair and a process for the preparation thereof.Type: GrantFiled: June 16, 1989Date of Patent: May 7, 1991Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.Inventors: Gyorgy Hidasi, Istvan Szekely, Bela Bertok, Sandor Zoltan, Lajos Nagy, Antal Gajari, Eva Somfai, Agnes Hegedus, Laszlo Pap, Rudolf Soos, Erzsebet Radvany, Sandor Botar, Tamas Szabolcsi
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Patent number: 4963584Abstract: According to the present invention there is provided an insecticidal composition containing more than one active ingredients which comprises as active ingredient in an amount of 0.001-99% by weight a synthetic pyrethroid of the general Formula I ##STR1## wherein X stands for chlorine or bromine--namely out of the eight possible isomers at least 95% of a 55:45-25:75 mixture of the enantiomer-pairs Ia:Ib, wherein Ia is 1RcisS+1ScisR and Ib is 1RtransS++1StransR--if desired, in admixture with an activator and/or with an amount of up to 100% of an auxiliary agent, preferably an antioxidant, stabilizer, wetting agent, emulsifying agent, dispersing agent, antifoam agent, diluent, carrier, and/or filler.The advantage of the insecticidal composition of the present invention is that it is less toxical towards warm-blooded animals and useful parasites and is therefore much less harmful to the environment.Type: GrantFiled: June 19, 1989Date of Patent: October 16, 1990Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.Inventors: Gyorgy Hidasi, Istvan Szekely, Bela Bertok, Sandor Zoltan, Lajos Nagy, Antal Gajari, Eva Somfai, Agnes Hegedus, Laszlo Pap, Ruldof Soos, Erzsebet Radvany, Sandor Botar, Tamas Szabolcsi
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Patent number: 4845126Abstract: According to the present invention there is provided a synergistic insecticidal composition containing more than one active ingredients and being harmless to environment characterized by comprising in an amount of from 0.001 to 99% by weight a synthetic pyrethroid of the Formula /I/ ##STR1## namely substantially only the 1RtransS and 1StransR entantiomer-pair /Ib/ out from the possible eight isomers--optionally in admixture with an amount of up to 100% by weight of one or more activator/s/ and auxiliary agent/s/, particularly antioxidants, stabilizing agents, wetting agents, emulsifying agents, dispersing agents, antifoam agents, dileunts and/or fillers.The enantiomer-pair Ib consisting of the 1RtransS and 1StransR isomers is new and the invention also relates to the said new enantiomer-pair and a process for the preparation thereof.Type: GrantFiled: September 16, 1986Date of Patent: July 4, 1989Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.Inventors: Gyorgy Hidasi, Istvan Szekely, Bela Bertok, Sandor Zoltan, Lajos Nagy, Antal Gajari, Eva Somfai, Agnes Hegedus, Laszlo Pap, Rudolf Soos, Erzsebet Radvany, Sandor Botar, Tamas Szabolcsi
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Patent number: 4788217Abstract: The invention relates to new compounds of the Formula I ##STR1## wherein R.sup.2 stands for hydrogen or C.sub.1-4 alkyl; andR.sup.3 represents C.sub.1-4 alkyl or a group of the Formula R.sup.4 --(CH.sub.2).sub.n -- wherein n is 1 or 2;R.sup.4 represents C.sub.1 to C.sub.4 alkoxy-carbonylor a group of the Formula II ##STR2## and R.sup.6 and R.sup.7 stand for hydrogen or C.sub.1-4 alkoxy; orR.sup.2 and R.sup.3 together may form a group of the Formula --(CH.sub.2).sub.2 --O--CH.sub.2).sub.2 -- with the proviso that R.sup.2 and R.sup.3 do not both stand for methyl, and salts thereof and a process for the preparation of the same.Type: GrantFiled: July 21, 1986Date of Patent: November 29, 1988Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.Inventors: Grorgy Lanyi, Lajos Nagy, Eva Somfai, Valeria Denes nee Lustig, Erzsebet Radvany nee Hegedos, Leszloo Pap, Tamas Detre, Andras Szego, Maria Visnyovszky neee Bvez
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Patent number: 4524068Abstract: The invention relates to new inclusion complexes of piperonyl butoxide formed with cyclodextrin.The new complex of the invention can be prepared by reacting cyclodextrin or a solution thereof formed with water and/or an organic solvent having 1-4 carbon atoms, preferably ethanol with piperonyl butoxide or a solution thereof formed with an organic solvent having 1-4 carbon atoms, preferably ethanol at a temperature between 20.degree. C. and 90.degree. C., whereby the piperonyl butoxide is used in an amount of 0.6-1.5 moles related to 1 mole of cyclodextrin.The complexes of the present invention synergize the pesticidal effect of known insecticides and fungicides to a much higher extent of known insecticides and fungicides to a much higher extent than piperonyl butoxide used per se.Type: GrantFiled: November 9, 1983Date of Patent: June 18, 1985Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.Inventors: Jozsef Szejtli, Zsuzsanna Budai, Erzsebet Radvany nee Hegedus, Laszlo Papp, Gyorgy Kormoczy, Gabriella Pap nee Imrenyi
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Patent number: 4058608Abstract: The invention relates to a method of combatting phytopathogenic fungi, primarily powdery mildew. The method involves administering compositions according to the invention which contain as active principle at least one compound of the formula (I), ##STR1## wherein R.sup.1 is a C.sub.1-12 alkyl or a chloroethyl group,R.sup.2 is hydrogen, halogen, a C.sub.1-4 alkyl, a C.sub.1-4 alkoxy or nitro group,R.sup.3 is hydrogen, halogen, a C.sub.1-4 alkyl or nitro group, andR.sup.4 is hydrogen, halogen, a C.sub.1-4 alkyl or nitro group, or an acid addition salt thereof.Type: GrantFiled: October 20, 1975Date of Patent: November 15, 1977Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara RTInventors: Tibor Zsolnai, Gyorgy Lugosi, Istvan Szepesi, Maria Bakonyi, Istvan Racz, Erzsebet Radvany nee Hegedus