Patents by Inventor Istvan Barta
Istvan Barta 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: 8445548Abstract: The invention is related to the preparation of low-tar syngas from organic wastes and optionally to the preparation of methanol from the syngas or from the separated carbon dioxide. The process is characterized by introducing the secondary raw material comprising preferably solid communal waste, sludge and/or biomass waste into a double-flow one-body generator, comprising an inner pyrolysing, oxidizing and reducing zone and converting the obtained pyrolysis coke, pyrolysis water and tar formed by the aid of the heat content of the gas flowing upwards in the outer gas space by blowing oxygen into the fix-bed, to a raw syngas comprising carbon dioxide, carbon monoxide and hydrogen, on the fix bed of the pyrolysis coke and optionally a liquid containing liquid hydrocarbons or a powder of high carbon content are added in order to control the temperature and hydrohalides are removed from the obtained raw syngas on a calcium carbonate bed at 200-700° C.Type: GrantFiled: April 2, 2009Date of Patent: May 21, 2013Inventors: Iván Raisz, István Barta
-
Publication number: 20110039956Abstract: The invention is related to the preparation of low-tar syngas from organic wastes and optionally to the preparation of methanol from the syngas or from the separated carbon dioxide. The process is characterized by introducing the secondary raw material comprising preferably solid communal waste, sludge and/or biomass waste into a double-flow one-body generator, comprising an inner pyrolysing, oxidizing and reducing zone and converting the obtained pyrolysis coke, pyrolysis water and tar formed by the aid of the heat content of the gas flowing upwards in the outer gas space by blowing oxygen into the fix-bed, to a raw syngas comprising carbon dioxide, carbon monoxide and hydrogen, on the fix bed of the pyrolysis coke and optionally a liquid containing liquid hydrocarbons or a powder of high carbon content are added in order to control the temperature and hydrohalides are removed from the obtained raw syngas on a calcium carbonate bed at 200-700° C.Type: ApplicationFiled: April 2, 2009Publication date: February 17, 2011Inventors: Iván Raisz, István Barta
-
Patent number: 7321035Abstract: A process for conveniently and efficiently preparing a 2,6-dihalogenopurine using an inexpensive starting material. A process for preparing a 2,6-dihalogenopurine, comprising treating a 2-amino-6-halogenopurine having a protective group at 7th position or 9th position with a diazotizating agent and a halogen source; and a process for preparing a 9-acyl-2-amino-6-halogenopurine, comprising treating a 2-amino-6-halogenopurine with an acylating agent in the presence of a base.Type: GrantFiled: November 19, 2004Date of Patent: January 22, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Naruhito Masai, Taketo Hayashi, Hiroharu Kumazawa, Junichi Nishikawa, Istvan Barta, Takehiko Kawakami
-
Publication number: 20060281155Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I) from a compound of general formula (II) wherein R stands for an alkali metal or ammonium ion, by the submerged cultivation of a mold strain able to 6?-hydroxylate a compound of the Formula (II) in aerobic fermentation and by the separation and purification of the product of Formula (I) formed in the course of the bioconversion. The process comprises cultivating a strain of Mortierella maculata filamentous mold species that is able to 6?-hydroxylate a compound of the general Formula (II), on a nutrient medium containing assimilable carbon and nitrogen sources and mineral salts and separating the product formed from the fermentation broth, then isolating the compound of formula (I) and purifying the same. Novel strains of Mortierella maculata are also disclosed.Type: ApplicationFiled: August 25, 2006Publication date: December 14, 2006Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Suto, Janos Salat, Attila Andor, Laszlo Birincsik, Sandor Boros, Ildiko Lang, Margit Nee Igloy
-
Patent number: 7078223Abstract: A procedure for the preparation of pseudomonic acid A comprising submerged cultivation of a Pseudomonas bacterium strain capable of biosynthesis of the substantially pure pseudomonic acid A in aerated conditions via fermentation; and isolation of the desired compound is disclosed. In particular, the procedure of the present invention comprises cultivation of the Pseudomonas sp. bacterium strain No. 19/26 deposited under accession No. NCAIM(P)B 001235 in the National Collection of the Agricultural and Industrial Microorganisms, Budapest, Hungary, or its pseudomonic acid A-producing mutant or variant, on a medium at a temperature of between about 20° C. and 30° C. containing organic nitrogen and carbon sources and, optionally, mineral salts.Type: GrantFiled: November 12, 2002Date of Patent: July 18, 2006Assignee: TEVA Gyógyszergyár Zártkörüen Müködö RészvénytársaságInventors: Valeria Szell, Ildiko Lang, Istvan Barta, Aniko Tedges, Karoly Albrecht, Julianna Mozes Nee Suto, Istvan M. Szabo, Magdolna Petroczki, Janos Erdei, Eva Gulyas, Gabor Balogh
-
Patent number: 6936713Abstract: A process for conveniently and efficiently preparing a 2,6-dihalogenopurine using an inexpensive starting material. A process for preparing a 2,6-dihalogenopurine, comprising treating a 2-amino-6-halogenopurine having a protective group at 7th position or 9th position with a diazotizating agent and a halogen source; and a process for preparing a 9-acyl-2-amino-6-halogenopurine, comprising treating a 2-amino-6-halogenopurine with an acylating agent in the presence of a base.Type: GrantFiled: April 3, 2002Date of Patent: August 30, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Naruhito Masai, Taketo Hayashi, Hiroharu Kumazawa, Junichi Nishikawa, István Barta, Takehiko Kawakami
-
Patent number: 6905851Abstract: The present invention relates to a new microbial process for the preparation of compound of formula (I) from a compound of general formula (II) wherein R stands for an alkali metal or ammonium ion, by the submerged culture of a strain which is able to 6?-hydroxylate the compound of formula (II) in aerobic fermentation and by the separation and purification of the product of formula (I) formed in the course of the bioconversion. The latter comprises the cultivation of a Micromonospora strain which is able to 6?-hydroxylate a compound of general formula (II)—wherein R is as defined above—at 25-32° C. on a nutrient medium containing available carbon—and nitrogen sources and mineral salts, thereafter feeding the substrate to be transformed into the developing culture, then hydroxilating the substrate until finishing of the bioconversion, then separating the compound of formula (I) from the culture broth and, if desired, purifying the same.Type: GrantFiled: June 29, 2000Date of Patent: June 14, 2005Assignee: IVAX Drug Research InstituteInventors: Antónia Jekkel, Gábor Ambrus, Éva Ilkóy, Ildikó Horváth, Attila Kónya, István Mihály Szabó, Zsuzsanna Nagy, Gyula Horváth, Júlia Mózes, István Barta, György Somogyi, János Salát, Sándor Boros
-
Publication number: 20050124051Abstract: The present invention relates to a new microbial process for the preparation of compound of formula (I) from a compound of general formula (II) wherein R stands for an alkali metal or ammonium ion, by the submerged culture of a strain which is able to 6?-hydroxylate the compound of formula (II) in aerobic fermentation and by the separation and purification of the product of formula (I) formed in the course of the biocoversion. The latter comprises the cultivation of a Micromonospora strain which is able to 6?-hydroxylate a compound of general formula (II)—wherein R is as defined above—at 25-32° C. on a nutrient medium containing available carbon—and nitrogen sources and mineral salts, thereafter feeding the substrate to be transformed into the developing culture, then hydroxilating the substrate until finishing of the bioconversion, then separating the compound of formula (I) from the culture broth and, if desired, purifying the same.Type: ApplicationFiled: December 16, 2004Publication date: June 9, 2005Inventors: Antonia Jekkel, Gabor Ambrus, Eva Ilkoy, Ildiko Horvath, Attila Konya, Istvan Szabo, Zsuzsanna Nagy, Gyula Horvath, Julia Mozes, Istvan Barta, Gyorgy Somogyi, Janos Salat, Sandor Boros
-
Publication number: 20050090666Abstract: A process for conveniently and efficiently preparing a 2,6-halogenopurine using an inexpensive starting material. A process for preparing a 2,6-dihalogenopurine, comprising treating a 2-amino-6-halogenopurine having a protective group at 7th position or 9th position with a diazotizating agent and a halogen source; and a process for preparing a 9-acyl-2-amino-6-halogenopurine, comprising treating a 2-amino-6-halogenopurine with an acylating agent in the presence of a base.Type: ApplicationFiled: November 19, 2004Publication date: April 28, 2005Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Naruhito Masai, Taketo Hayashi, Hiroharu Kumazawa, Junichi Nishikawa, Istvan Barta, Takehiko Kawakami
-
Patent number: 6750366Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I): from a compound of general formula (II): wherein R stands for an alkali metal or ammonium ion, by the submerged cultivation of a mold strain able to 6&bgr;-hydroxylate a compound of the Formula (II) in aerobic fermentation and by the separation and purification of the product of Formula (I) formed in the course of the bioconversion. The process comprises cultivating a strain of Mortierella maculata filamentous mold species that is able to 6&bgr;-hydroxylate a compound of the general Formula (II), on a nutrient medium containing assimilable carbon and nitrogen sources and mineral salts and separating the product formed from the fermentation broth, then isolating the compound of formula (I) and purifying the same. Novel strains of Mortierella maculata are also disclosed.Type: GrantFiled: December 5, 2001Date of Patent: June 15, 2004Assignee: Institute for Drug Research Ltd.Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Mozes Nee Suto, Janso Salat, Attila Andor, Laszlo Birinesik, Sandor Boros, Ildiko Lang, Margit Bidlo Nee Igloy
-
Publication number: 20040039225Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I) 1Type: ApplicationFiled: August 27, 2003Publication date: February 26, 2004Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Mozes Nee Suto, Janso Salat, Attila Andor, Laszlo Birincsik, Sandor Boros, Ildiko Lang, Margit Bidlo Nee Igloy
-
Patent number: 6696599Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I) from a compound of general formula (II) wherein R stands for an alkali metal or ammonium ion, by the submerged cultivation of a mold strain able to 6&bgr;-hydroxylate a compound of the Formula (II) in aerobic fermentation and by the separation and purification of the product of Formula (I) formed in the course of the bioconversion. The process comprises cultivating a strain of Mortierella maculata filamentous mold species that is able to 6&bgr;-hydroxylate a compound of the general Formula (II), on a nutrient medium containing assimilable carbon and nitrogen sources and mineral salts and separating the product formed from the fermentation broth, then isolating the compound of formula (I) and purifying the same. Novel strains of Mortierella maculata are also disclosed.Type: GrantFiled: May 14, 2003Date of Patent: February 24, 2004Assignee: Institute for Drug Research, Ltd.Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Mozes Nee Suto, Janso Salat, Attila Andor, Laszlo Birincsik, Sandor Boros, Ildiko Lang, Margit Bidlo Nee Igloy
-
Patent number: 6682913Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I) from a compound of general formula (II) wherein R stands for an alkali metal or ammonium ion, by the submerged cultivation of a mold strain able to 6&bgr;-hydroxylate a compound of the Formula (II) in aerobic fermentation and by the separation and purification of the product of Formula (I) formed in the course of the bioconversion. The process comprises cultivating a strain of Mortierella maculata filamentous mold species that is able to 6&bgr;-hydroxylate a compound of the general Formula (II), on a nutrient medium containing assimilable carbon and nitrogen sources and mineral salts and separating the product formed from the fermentation broth, then isolating the compound of formula (I) and purifying the same. Novel strains of Mortierella maculata are also disclosed.Type: GrantFiled: February 3, 2000Date of Patent: January 27, 2004Assignee: Institute for Drug Research Ltd.Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Mozes nee Suto, Janso Salat, Attila Andor, Laszlo Birincsik, Sandor Boros, Ildiko Lang, Margit Bidlo nee Igloy
-
Publication number: 20030207413Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I) 1Type: ApplicationFiled: May 14, 2003Publication date: November 6, 2003Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Mozes Nee Suto, Janso Salat, Attila Andor, Laszlo Birincsik, Sandor Boros, Ilidiko Lang, Margit Bidlo Nee Igloy
-
Publication number: 20030144508Abstract: A process for conveniently and efficiently preparing a 2,6-halogenopurine using an inexpensive starting material. A process for preparing a 2,6-dihalogenopurine, comprising treating a 2-amino-6-halogenopurine having a protective group at 7th position or 9th position with a diazotizating agent and a halogen source; and a process for preparing a 9-acyl-2-amino-6-halogenopurine, comprising treating a 2-amino-6-halogenopurine with an acylating agent in the presence of a base.Type: ApplicationFiled: December 4, 2002Publication date: July 31, 2003Inventors: Naruhito Masai, Taketo Hayashi, Hiroharu Kumazawa, Junichi Nishikawa, Istvan Barta, Takehiko Kawakami
-
Publication number: 20030100083Abstract: A procedure for the preparation of pseudomonic acid A comprising submerged cultivation of a Pseudomonas bacterium strain capable of biosynthesis of the substantially pure pseudomonic acid A in aerated conditions via fermentation; and isolation of the desired compound is disclosed. In particular, the procedure of the present invention comprises cultivation of the Pseudomonas sp. bacterium strain No. 19/26 deposited under accession No. NCAIM(P)B 001235 in the National Collection of the Agricultural and Industrial Microorganisms, Budapest, Hungary, or its pseudomonic acid A-producing mutant or variant, on a medium at a temperature of between about 20° C. and 30° C.Type: ApplicationFiled: November 12, 2002Publication date: May 29, 2003Inventors: Valeria Szell, Ildiko Lang, Istvan Barta, Aniko Tedges, Karoly Albrecht, Julianna Mozes Nee Suto, Istvan M. Szabo, Magdolna Petroczki, Janos Erdei, Eva Gulyas, Gabor Balogh
-
Patent number: 6509177Abstract: A procedure for the preparation of pseudomonic acid A comprising submerged cultivation of a Pseudomonas bacterium strain capable of biosynthesis of the substantially pure pseudomonic acid A in aerated conditions via fermentation; and isolation of the desired compound is disclosed. In particular, the procedure of the present invention comprises cultivation of the Pseudomonas sp. bacterium strain No. 19/26 deposited under accession No. NCAIM(P)B 001235 in the National Collection of the Agricultural and Industrial Microorganisms, Budapest, Hungary, or its pseudomonic acid A-producing mutant or variant, on a medium at a temperature of between about 20° C. and 30° C. containing organic nitrogen and carbon sources and, optionally, mineral salts.Type: GrantFiled: February 3, 2000Date of Patent: January 21, 2003Assignee: Biogal Gyogyszergyar Rt.Inventors: Valeria Szell, Ildiko Lang, Istvan Barta, Aniko Tedges, Karoly Albrecht, Julianna Mozes Nee Suto, Istvan M. Szabo, Magdolna Petroczki, Janos Erdei, Eva Gulyas, Gabor Balogh
-
Patent number: 6506591Abstract: A procedure for the preparation of pseudomonic acid A comprising submerged cultivation of a Pseudomonas bacterium strain capable of biosynthesis of the substantially pure pseudomonic acid A in aerated conditions via fermentation; and isolation of the desired compound is disclosed. In particular, the procedure of the present invention comprises cultivation of the Pseudomonas sp. bacterium strain No. 19/26 deposited under accession No. NCAIM(P)B 001235 in the National Collection of the Agricultural and Industrial Microorganisms, Budapest, Hungary, or its pseudomonic acid A-producing mutant or variant, on a medium at a temperature of between about 20° C. and 30° C. containing organic nitrogen and carbon sources and, optionally, mineral salts.Type: GrantFiled: October 11, 2001Date of Patent: January 14, 2003Assignee: Biogal Gyogyszergyar Rt.Inventors: Valeria Szell, Ildiko Lang, Istvan Barta, Aniko Tedges, Karoly Albrecht, Julianna Mozes Nee Suto, Istvan M. Szabo, Magdolna Petroczki, Janos Erdei, Eva Gulyas, Gabor Balogh
-
Publication number: 20020081675Abstract: The present invention relates to a new microbial process for the preparation of the compound formula (I) 1Type: ApplicationFiled: December 5, 2001Publication date: June 27, 2002Inventors: Antonia Jekkel, Attila Konya, Istvan Barta, Eva Ilkoy, Gyorgy Somogyi, Gabor Ambrus, Gyula Horvath, Karoly Albrecht, Istvan Szabo, Julianna Mozes Nee Suto, Janso Salat, Attila Andor, Laszlo Birinesik, Sandor Boros, Ildiko Lang, Margit Bidlo Nee Igloy
-
Publication number: 20020042103Abstract: A procedure for the preparation of pseudomonic acid A comprising submerged cultivation of a Pseudomonas bacterium strain capable of biosynthesis of the substantially pure pseudomonic acid A in aerated conditions via fermentation; and isolation of the desired compound is disclosed. In particular, the procedure of the present invention comprises cultivation of the Pseudomonas sp. bacterium strain No. 19/26 deposited under accession No. NCAIM(P)B 001235 in the National Collection of the Agricultural and Industrial Microorganisms, Budapest, Hungary, or its pseudomonic acid A-producing mutant or variant, on a medium at a temperature of between about 20° C. and 30° C. containing organic nitrogen and carbon sources and, optionally, mineral salts.Type: ApplicationFiled: October 11, 2001Publication date: April 11, 2002Inventors: Valeria Szell, Ildiko Lang, Istvan Barta, Aniko Tedges, Karoly Albrecht, Julianna Mozes Nee Suto, Istvan M. Szabo, Magdolna Petroczki, Janos Erdei, Eva Gulyas, Gabor Balogh