Patents by Inventor Lajos Nagy

Lajos Nagy 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: 4950682
    Abstract: The present invention relates to synergistic arthropodicidal composition of several pyrethroidal active ingredients causing no damage to warm-blooded organisms comprising pyrethroides and piperonyl butoxide as active ingredient which comprises as pyrethroidal active ingredient 0.1-20% by weight of 1StransR-alpha-cyano-3-phenoxy-benzyl-3- (2,2-dichlorvinyl)-2,2-dimethyl/cyclopropane-cyrboxylate of the Formula I ##STR1## 0.05-10% by weight of cis-trans-tetramethrin (3,4,5,6-tetrahydrophthalimido-methyl(1RS)-cis-trans-chrysantemate) or trans-tetramethrin of the Formula II ##STR2## and a further pyrethroide, 0.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: August 21, 1990
    Assignee: Chinoin Gyogyszer- es Vegyeszeti Termekek Gyara Rt.
    Inventors: Laszlo Pap, Peter Sarkozi, Eva Somfai, Andras Szego, Istvan Szekely, Gyorgy Hidasi, Sandor Zoltan, Aniko Deak nee Moinar, Agnes Hegedus, Bela Bertok, Sandor Botar, Antal Gajary, Lajos Nagy
  • Patent number: 4859772
    Abstract: The present invention relates to a process for the preparation of 3-isopropyl-benzo-2-thia-1,3-diazinone-(4)-2,2-dioxide which comprises preparing isopropyl sulfamoyl chloride in one step by reacting N,N'-diisopropyl-urea with phosphorus trichloride and chlorine in the presence of oleum and sulfuric acid and condensing the so obtained isopropyl sulfamoyl chloride at room temperature without any solvent in the presence of an excess of N,N-diethyl aniline with anthranylic acid methyl ester and subjecting the thus obtained N-isopropyl-N'-o-carbomethoxy-phenyl-sulfamide to cyclization in the presence of sodium methylate, extracting the obtained crude 3-isopropyl-benzo-2-thia-1,3-diazinone-(4)-2,2-dioxide with a mixture of methanol and water and after adding water to the aqueous-methanolic mixture and sedimenting the contaminations isolating a product of high purity.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: August 22, 1989
    Assignee: Nitro Kemia Ipartelepek
    Inventors: Jeno Pelyva, K. Istvan Vecsey, Zoltan Kolonics, Laszlo Legradi, Lajos Nagy, Andras Horvath, Ferenc Fodor, deceased, Csaba Soptei, Dezso Sebok, Elemer Tomordi, Laszlo Lendvai, Bela Karacsonyi, Erzsebet Dioszegi
  • Patent number: 4845126
    Abstract: 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: Grant
    Filed: September 16, 1986
    Date of Patent: July 4, 1989
    Assignee: 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
  • Patent number: 4820838
    Abstract: The invention relates to a process for the preparation of a new crystalline monohydrate of 1-(3', 4'-diethoxy-benzyl-6, 7-diethoxy-3,4-dihydro-isoquinolinium-theophylline-7-acetate and if desired of pure 1-(3', 4'-diethoxy-benzyl)-6,7-diethoxy-3, 4-dihydro-isoquinolinium-theophylline-7-acetate free of contaminating oxidation products which comprises reacting 1-(3',4'-diethoxy-benzyl)-6,7-diethoxy-3,4-dihydro-isoquinolinium with theophylline-7-acetate acid in the presence of water and one or more organic solvent(s) and if desired dehydrating the 1-(3',4'-diethoxy-benzyl) 6,7-diethoxy-3,4-dihydro-isoquinolinium-theophyl line-7-acetate-monohydrate thus obtained.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: April 11, 1989
    Assignee: Chinoin Gyogyszer- Es Vegyeszeti Termekek Gyara Rt.
    Inventors: Antal Friesz, Zsuzsanna Nad, Lajos Nagy, Tamas Kallay
  • Patent number: 4788217
    Abstract: 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: Grant
    Filed: July 21, 1986
    Date of Patent: November 29, 1988
    Assignee: 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
  • Patent number: 4672112
    Abstract: A new and improved herbicidal and plant growth regulating composition, and the method of manufacturing that composition. The new complex composition of the invention is an inclusion complex of one more benzene sulphonyl urea derivative of the general formula (II) ##STR1## and two or more moles of beta cyclodextrine of the formula (I).
    Type: Grant
    Filed: June 6, 1985
    Date of Patent: June 9, 1987
    Assignees: Magyar Tudomenyos Akademia Novenyvedelmi Kutato Intezete, Nitrokemia Ipartelepek
    Inventors: Gyorgy Matolcsy, Antal Gimesi, Krisztina Pelejtei nee Bauer, Janisz Sztatisz, Agota Tombor nee Szotyori, Tibor Cserhati, Aniko Gerlei nee Komaromy, Mariann Kardos nee Nikoletti, Jozsef Dukai, Dezso Sebok, Csaba Soptei, Lajos Nagy, Ivan Belai
  • Patent number: 4626242
    Abstract: In an inoculating apparatus between the inoculating unit and the actuating unit a quick coupling mechanism is inserted. The inoculating device itself becomes actuated by means of a siphon-cartridge via a valve performing a triple function.The structure ensures the discharge of the carbonic acid gas quantity required for operation through the bore of the piston, simultaneously it prevents further outflow of the carbonic acid gas from the cartridge after work performance.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: December 2, 1986
    Assignee: Radelkis Elektrokemiai Muszergyarto Ipari Szovetkezet
    Inventors: Kalman Fejes, Lajos Nagy
  • Patent number: 4564706
    Abstract: The invention relates to a new process for the preparation of propargyl ammonium chlorides of the Formula I ##STR1## by alkaline decomposition of the d-tartarate of the 1-isomer of an amine of the Formula II ##STR2## and subsequent reaction of the amine of the Formula II with a halide of the Formula IIIX--CH.sub.2 --C.tbd.
    Type: Grant
    Filed: July 14, 1983
    Date of Patent: January 14, 1986
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Zoltan Ecsery, Eva Somfai, Judit Hermann nee Voros, Lajos Nagy, Gabor Szabo, Otto Orban, Laslzo Arvai
  • Patent number: 4403776
    Abstract: A logic toy for distinctive indication of bordering zones on a surface, especially existing administrative districts, such as countries, facilitating herewith the development of logic way of thinking and depth perception together with the memorization of colored vision or other kind of signalling. The body of the logic toy is for example a parallelepiped, a sphere or globe or the like, the surface thereof is divided into separated zones, whereby the body is provided with built-in signalling means for displaying a signal simultaneously for each separated zone. Comparing the logic toy according to the invention to the known logic toys, such as the magic cube or the like, it means in each occasion a new logic task to be solved, therefore the playing can not become a routine work. Furthermore, a given task can be solved in different ways, and the tasks can be made gradually more and more complicated.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: September 13, 1983
    Assignees: Gyula Subotics, Gyulane Subotics, Lajos Nagy
    Inventors: Gyula Subotics, Gyulane Subotics, Lajos Nagy
  • Patent number: 4369252
    Abstract: The invention relates to a new process for the preparation of ergot alkaloids, primarily ergocornine and .beta.-ergocryptine, by subjecting a Claviceps purpurea strain to fermentation under aerobic conditions in a culture medium which contains carbon and nitrogen sources, mineral salts and optionally other additives, too. According to the invention a Claviceps purpurea variant strain deposited under No. MNG 00186 is applied as alkaloid-producing strain.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: January 18, 1983
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Geza Wack, Janos Kiss, Zsuzsa Lengyel nee Szemenyei, Lajos Nagy, Eva Udvardy Nagy nee Cserey Pechany, Karoly Zalai, Erzsebet Zsoka nee Somkuti
  • Patent number: 4334103
    Abstract: The invention relates to a process for nucleophilic substitution reactions. According to the invention the reaction is carried out in a hetergeneous system, consisting of a solid and a dissolved reactant, one or several organic solvents, one or several linear polyether derivatives, and/or amino compounds and water. The volume of the water is preferably at the most 100% of the volume of the organic solvent and more preferably 5%.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: June 8, 1982
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
    Inventors: Laszlo Toke, Gabor T. Szabo, Gabor Szabo, Lajos Nagy, Istvan Rusznak
  • Patent number: 4281170
    Abstract: A method of making an insecticidal pyrethrin by oxidation in aprotic organic solvent. The compounds are of the formula: ##STR1## wherein R.sup.11 is straight or branched chain lower alkyl or 1-alkenyl or hydrogen;R and R.sup.12 are the same or different and are hydrogen, halogen or lower alkyl or one of the moieties R and R.sup.12 is lower alkoxycarbonyl.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: July 28, 1981
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt
    Inventors: Istvan Szekely, Marianna Lovasz nee Gaspar, Gabor Kovacs, Rudolf Soos, Lajos Nagy, Bela Koszegi
  • Patent number: 4248888
    Abstract: Insecticidal compounds of the formula: ##STR1## wherein R.sup.11 is a straight or branched chain lower alkyl or 1-alkenyl or hydrogen;R and R.sup.12 are the same or different and are hydrogen, halogen, or straight or branched chained lower alkyl, or one of the moieties R and R.sup.12 is lower alkoxycarbonyl; the bonds represent .alpha.- and/or .beta.-configuration and the -- bonds represent .beta.-configuration.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: February 3, 1981
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Istvan Szekely, Marianna Lovasz, nee Gaspar, Gabor Kovacs, Rudolf Soos, Lajos Nagy, Bela Koszegi
  • Patent number: 4229366
    Abstract: The invention relates to a process for nucleophilic substitution reactions. According to the invention the reaction is carried out in a heterogeneous system, consisting of a solid and a dissolved reactant, one or several organic solvents, one or several linear polyether derivatives, and/or amino compounds and water.The volume of the water is preferably at the most 100% of the volume of the organic solvent and more preferably 5%.According to the invention the anhydrous reaction medium which is difficult to ensure, is not necessary and the use of the expensive and in industrial scales unavailable crown ethers is eliminated.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: October 21, 1980
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termeker Gyara Rt.
    Inventors: Laszlo Toke, Gabor T. Szabo, Gabor Szabo, Lajos Nagy, Istvan Rusznak
  • Patent number: 4146570
    Abstract: Automatic sterilizer apparatus having an enclosed sterilizing chamber and a heater for vaporizing water placed in the chamber. An air exhaust valve is connected at the chamber and comprises a valve housing, a heat-expanding valve body of smaller cross-section than the housing, and a valve seat the position of which can be adjusted, these parts constituting an air/steam shut-off valve.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: March 27, 1979
    Assignee: Labor Muszeripari Muvek
    Inventor: Lajos Nagy