Patents by Inventor Istvan Gebhardt
Istvan Gebhardt 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: 6458774Abstract: Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc or cobalt (II) hyaluronate is preferably used as active ingredient.Type: GrantFiled: November 25, 1994Date of Patent: October 1, 2002Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Kalman Burger, Ivan Rethey, Bela Stefko, Istvan Gebhardt, Arpadne Kiraly, Geza Takacsi Nagy, Janos Illes, Erzsebet Neszmelyi, Istvan Racz, Victoria Varkonyi
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Patent number: 5472950Abstract: Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc or cobalt (II) hyaluronate is preferably used as active ingredient.Type: GrantFiled: September 22, 1992Date of Patent: December 5, 1995Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Kalman Burger, Ivan Rethey, deceased, Bela Stefko, Istvan Gebhardt, Arpadne Kiraly nee Gyongyver Soos, Geza T. Nagy, Janos Illes, Erzsebet Nesmelyi, Istvan Racz, Viktoria Varkonyi
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Patent number: 5312622Abstract: The invention relates to acaricidal compositions containing as active ingredient: the fermentation broth or cell-free fermentation broth, of a concentrate of the fermentation broth or cell-free fermentation broth, or a solidified form of the fermentation broth or cell-free fermentation broth of one or two bacterium strains deposited at the National Collection of Agricultural and Industrial Microorganisms, Budapest, Hungary under the identification Nos. 001083 and 001086 or of their mixed micropopulation, if desired, in a sterilized state, optionally together with the metabolism products arising during the fermentation and inutilized nutriments, as well as one or more solid and/or liquid carrier(s) (preferably sugar or a grist of natural minerals), or an inert solvent (e.g. water) and, if desired, with surface active (preferably anionic or nonionic emulsifying or dispersing) agents.Type: GrantFiled: January 30, 1992Date of Patent: May 17, 1994Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Tibor Nagy, Karoly Zalai, Denes Mathe, Bela Stefko, Arpad Hadhazy, Gyula Csokas, Istvan Gebhardt
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Patent number: 5091355Abstract: A Raney catalyst composition which has ice as a solid carrier. The reaction involving the Raney catalyst of the invention is carried out by portionwise adding a Raney catalyst containing ice as solid carrier to the reaction mixture. The operation-safe cylindrical or angular vessel used for the storage and/or handling of the Raney catalyst has a conical casing or side walls joining to the bottom through a bend radius of greater than 0.5 mm. The vessel is covered by a tightly closing cap.Type: GrantFiled: September 21, 1990Date of Patent: February 25, 1992Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Imre Godla, Jozsef Foldesi, Istvan Polgar, Endre Gulyas, Istvan Gebhardt, Janos Kiss, Karoly Molnar, Andras Sugar, Pal Angyal, Ferenc Konok, Zoltan Marina
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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: 4831173Abstract: The invention relates to new compounds of the general formulae (I) and/or (II), ##STR1## wherein R.sup.1 is a C.sub.1-6 alkyl or an aralkyl group, andR.sup.2 is hydrogen or a C.sub.1-6 alkyl group.According to another aspect of the invention there are provided processes for the preparation of these compounds.The compounds of the general formulae (I) and/or (II) are utilizable for the oxymation and/or trimethylsilylation of any substrate bearing an oxo group and/or a silylable polar hydrogen.The compounds of the general formula (VI):(CH.sub.3).sub.3 Si--Y--Z=N--OR.sup.1 (VI)whereinR.sup.1 is as defined aboveY is oxygen, nitrogen or sulphur atom or a carboxylate anion, andZ is the skeleton of the substrate,said compounds being formed in the oxymation and/or trimethylsilylation reaction, are also within the scope of the invention.Type: GrantFiled: September 18, 1986Date of Patent: May 16, 1989Assignee: Eotvos Lorand TudomanyegyetemInventors: Dezso Knausz, B',acu/e/ la Csakvari, Istvan Gebhardt, Aranka Meszticzky, Zsuzsanna Kolos, Janos Rohonczy, Ferenc Szederkenyi, Kamtan Ujszaszy, Janos Volford
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Patent number: 4334910Abstract: A herbicidal composition capable of preventing weed growth of potatoes or soybean plants consists of a triazene or an aromatic nitro compound together with an inorganic salt, especially sodium bisulfate or potassium bisulfate which reduced the quantity of the organic herbicide below that usually required to obtain a corresponding herbicidal effect and hence prevents phytotoxic damage. The composition contains 0.1:1 to 15:1 parts by weight of the inorganic compound to the organic compound and is applied in an amount of 0.1 to 30 kg of the composition per hectare.Type: GrantFiled: August 30, 1976Date of Patent: June 15, 1982Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Csaba Lorincz, Eva Lorincz nee Csapo, Istvan Gebhardt, Antal Gimesi, Bela Stefko, Erik Bogsch, Zsuzsanna Foldesi nee Szasz, Kalman Szasz