Patents by Inventor Weol Kyu Jeong
Weol Kyu Jeong 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: 10301588Abstract: The present invention relates to a method for degrading DNA in a sample obtained by microbial fermentation or biotransformation, comprising treating the sample with a combination of increased temperature and low pH. It also relates to a method for releasing DNA from a microbial cell, comprising incubating the microbial cell at a temperature of 45° C. to 55° C. for two to ten hours. Finally, the present invention provides a method for producing a product, comprising a step of releasing DNA from a microbial cell and degrading said DNA.Type: GrantFiled: December 9, 2015Date of Patent: May 28, 2019Assignee: BASF SEInventors: Birgit Hoff, Stefan Haefner, Weol Kyu Jeong, Edzard Scholten
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Publication number: 20170369835Abstract: The present invention relates to a method for degrading DNA in a sample obtained by microbial fermentation or bio-transformation, comprising treating the sample with a combination of increased temperature and low pH. It also relates to a method for releasing DNA from a microbial cell, comprising incubating the microbial cell at a temperature of 45° C. to 55° C. for two to ten hours. Finally, the present invention provides a method for producing a product, comprising a step of releasing DNA from a microbial cell and degrading said DNA.Type: ApplicationFiled: December 9, 2015Publication date: December 28, 2017Inventors: Birgit HOFF, Stefan HAEFNER, Weol Kyu JEONG, Edzard SCHOLTEN
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Patent number: 8906653Abstract: The invention relates to a method for isolating 1,5-diaminopentane (DAP) from DAP-containing fermentation broths, to a method for the fermentative production of DAP using said isolating method and to a method for producing DAP-comprising polymers by using the DAP isolated or fermatively produced DAPs according to said methods.Type: GrantFiled: January 23, 2009Date of Patent: December 9, 2014Assignee: BASF SEInventors: Martin Völkert, Oskar Zelder, Burkhard Ernst, Weol Kyu Jeong
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Publication number: 20140256005Abstract: The present invention relates to a novel method for the fermentative production of gamma-aminobutyric acid (GABA) by cultivating a recombinant microorganism expressing an enzyme having a glutamate decarboxylase activity. The present invention also relates to corresponding recombinant hosts, recombinant vectors, expression cassettes and nucleic acids suitable for preparing such hosts as well as to a method for preparing polyamides making use of GABA as obtained fermentative production.Type: ApplicationFiled: May 29, 2014Publication date: September 11, 2014Applicant: BASF SEInventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
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Patent number: 8771998Abstract: The present invention relates to a novel method for the fermentative production of gamma-aminobutyric acid (GABA) by cultivating a recombinant microorganism expressing an enzyme having a glutamate decarboxylase activity. The present invention also relates to corresponding recombinant hosts, recombinant vectors, expression cassettes and nucleic acids suitable for preparing such hosts as well as to a method for preparing polyamides making use of GABA as obtained fermentative production.Type: GrantFiled: February 20, 2009Date of Patent: July 8, 2014Assignee: BASF SEInventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
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Patent number: 8741991Abstract: The present relates to nylon-5,10 molding compositions comprising A) from 40 to 90% by weight of a nylon-5,10, B) from 10 to 60% by weight of fiber-containing or mineral-containing fillers, C) from 0 to 20% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%. The present invention moreover relates to a process for the preparation of these molding compositions, to the use of these molding compositions for the production of moldings of any type, and to the resultant moldings, preferably motor vehicle bodywork parts or electronics components of any type, foils, and fibers.Type: GrantFiled: January 29, 2009Date of Patent: June 3, 2014Assignee: BASF SEInventors: Motonori Yamamoto, Weol Kyu Jeong, Arnold Schneller, Matthias Scheibitz, Freddy Gruber, Jürgen Deininger
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Patent number: 8741623Abstract: Process for the production of cadaverine by constructing a recombinant microorganism which has a deregulated lysine decarboxylase gene and at least one deregulated gene selected from the group (i) which consists of aspartokinase, aspartatesemialdehyde dehydrogenase, dihydrodipicolinate synthase, dihydrodipicolinate reductase, tetrahydrodipicolinate succinylase, succinyl-amino-ketopimelate transaminase, succinyl-diamino-pimelate desuccinylase, diaminopimelate epimerase, diaminopimelate dehydrogenase, arginyl-tRNA synthetase, diaminopimelate decarboxylase, pyruvate carboxylase, phosphoenolpyruvate carboxylase, glucose-6-phosphate dehydrogenase, transketolase, transaldolase, 6-phosphogluconolactonase, fructose 1,6-biphosphatase, homoserine dehydrogenase, phophoenolpyruvate carboxykinase, succinyl-CoA synthetase, methylmalonyl-CoA mutase, provided that if aspartokinase is deregulated as gene (i) at least a second gene (i) other than aspartokinase has to be deregulated, and cultivating said microorganism.Type: GrantFiled: March 23, 2007Date of Patent: June 3, 2014Assignee: BASF SEInventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
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Publication number: 20120295317Abstract: The present invention relates to the use of recombinant microorganisms comprising DNA molecules in a deregulated form which improve the production of cadaverine, as well as to recombinant DNA molecules and polypeptides used to produce the microorganism, said microorganism comprising an intracellular lysine decarboxylase activity and an enhanced lysine import activity or comprising an intracellular and an extracellular lysine decarboxylase activity or comprising an intracellular and extracellular lysine decarboxylase activity and an enhanced lysine import activity. The present invention also relates to a processes for the production of cadaverine using recombinant microorganisms.Type: ApplicationFiled: December 15, 2010Publication date: November 22, 2012Applicant: BASF SEInventors: Hartwig Schröder, Weol Kyu Jeong, Annegret Serwe, Oskar Zelder
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Publication number: 20110207183Abstract: The present invention is directed to a method utilizing a microorganism with reduced isocitrate dehydrogenase activity for the production of fine chemicals. Said fine chemicals may be amino acids, monomers for polymer synthesis, sugars, lipids, oils, fatty acids or vitamins and are preferably amino acids of the aspartate family, especially methionine or lysine, or derivatives of said amino acids, especially cadaverine. Furthermore, the present invention relates to a recombinant microorganism having a reduced isocitrate dehydrogenase activity in comparison to the initial microorganism and the use of such microorganisms in producing fine chemicals such as aspartate family amino acids and their derivatives.Type: ApplicationFiled: April 28, 2009Publication date: August 25, 2011Applicant: BASF SEInventors: Andrea Herold, Hartwig Schröder, Weol Kyu Jeong, Corinna Klopprogge, Oskar Zelder, Stefan Haefner, Ulrike Richter, Judith Becker, Christoph Wittmann
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Publication number: 20110003963Abstract: The present invention relates to a novel method for the fermentative production of dipicolinate by cultivating a recombinant microorganism expressing an enzyme having dipicolinate synthetase activity. The present invention also relates to corresponding recombinant hosts, recombinant vectors, expression cassettes and nucleic acids suitable for preparing such hosts as well as a method of preparing polyester or polyamide copolymers making use of dipicolinate as obtained by fermentative production.Type: ApplicationFiled: February 4, 2009Publication date: January 6, 2011Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
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Publication number: 20100331461Abstract: The present relates to nylon-5,10 molding compositions comprising A) from 40 to 90% by weight of a nylon-5,10, B) from 10 to 60% by weight of fiber-containing or mineral-containing fillers, C) from 0 to 20% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%. The present invention moreover relates to a process for the preparation of these molding compositions, to the use of these molding compositions for the production of moldings of any type, and to the resultant moldings, preferably motor vehicle bodywork parts or electronics components of any type, foils, and fibers.Type: ApplicationFiled: January 29, 2009Publication date: December 30, 2010Applicant: BASF SEInventors: Motonori Yamamoto, Weol Kyu Jeong, Arnold Schneller, Matthias Scheibitz, Freddy Gruber, Jürgen Deininger
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Publication number: 20100324258Abstract: The present invention relates to a novel method for the fermentative production of gamma-aminobutyric acid (GABA) by cultivating a recombinant micro-organism expressing an enzyme having a glutamate decarboxylase activity. The present invention also relates to corresponding recombinant hosts, recombinant vectors, expression cassettes and nucleic acids suitable for preparing such hosts as well as to a method for preparing polyamides making use of GABA as obtained fermentative production.Type: ApplicationFiled: February 20, 2009Publication date: December 23, 2010Applicant: BASF SEInventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
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Publication number: 20100292429Abstract: The invention relates to a method for isolating 1,5-diaminopentane (DAP) from DAP-containing fermentation broths, to a method for the fermentative production of DAP using said isolating method and to a method for producing DAP-comprising polymers by using the DAP isolated or fermatively produced DAPs according to said methods.Type: ApplicationFiled: January 23, 2009Publication date: November 18, 2010Applicant: BASF SEInventors: Martin Völkert, Oskar Zelder, Burkhard Ernst, Weol Kyu Jeong
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Publication number: 20100041107Abstract: The present invention is directed to a method of reducing the amount of at least one polypeptide in a host cell by expressing a nucleotide sequence encoding for the polypeptide in the host cell wherein the nucleotide sequence uses codons that are rarely used according to the codon usage of the host organism. Furthermore, the present invention relates to nucleotide sequences encoding for a polypeptide with a codon usage that has been adjusted to use codons that are only rarely used according to the codon usage of the host organism. The present invention further relates to the use of such sequences and methods for producing fine chemicals such as amino acids, sugars, lipids, oils, carbohydrates, vitamins, cofactors etc.Type: ApplicationFiled: October 18, 2007Publication date: February 18, 2010Applicant: BASF SEInventors: Andrea Herold, Corinna Klopprogge, Hartwig Schröder, Osker Zelder, Weol Kyu Jeong
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Publication number: 20090325244Abstract: The present invention relates to a method of increasing the amount of at least one polypeptide in the host cell by expressing a modified nucleotide sequence encoding for a polypeptide in a host cell with said modified nucleotide sequence being derived from a different non-modified nucleotide sequence encoding for a polypeptide of identical amino acid sequence such that the codon usage of the modified nucleotide sequence is adjusted to the codon usage of abundant proteins in the host cell.Type: ApplicationFiled: October 18, 2007Publication date: December 31, 2009Applicant: BASF SEInventors: Andrea Herold, Corinna Klopprogge, Hartwig Schröder, Oskar Zelder, Weol Kyu Jeong
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Publication number: 20090246838Abstract: Process for the production of cadaverine by constructing a recombinant microorganism which has a deregulated lysine decarboxylase gene and at least one deregulated gene selected from the group (i) which consists of aspartokinase, aspartatesemialdehyde dehydrogenase, dihydrodipicolinate synthase, dihydrodipicolinate reductase, tetrahydrodipicolinate succinylase, succinyl-amino-ketopimelate transaminase, succinyl-diamino-pimelate desuccinylase, diaminopimelate epimerase, diaminopimelate dehydrogenase, arginyl-tRNA synthetase, diaminopimelate decarboxylase, pyruvate carboxylase, phosphoenolpyruvate carboxylase, glucose-6-phosphate dehydrogenase, transketolase, transaldolase, 6-phosphogluconolactonase, fructose 1,6-biphosphatase, homoserine dehydrogenase, phophoenolpyruvate carboxykinase, succinyl-CoA synthetase, methylmalonyl-CoA mutase, provided that if aspartokinase is deregulated as gene (i) at least a second gene (i) other than aspartokinase has to be deregulated, and cultivating said microorganism.Type: ApplicationFiled: March 23, 2007Publication date: October 1, 2009Applicant: BASF SEInventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
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Publication number: 20090170170Abstract: The present invention relates to the use of nucleic acid sequences for regulating the transcription and expression of genes, the novel promoters and expression units themselves, methods for altering or causing the transcription rate and/or expression rate of genes, expression cassettes comprising the expression units, genetically modified microorganisms with altered or caused transcription rate and/or expression rate, and methods for preparing biosynthetic products by cultivating the genetically modified microorganisms.Type: ApplicationFiled: July 16, 2005Publication date: July 2, 2009Applicant: BASF AktiengesellschaftInventors: Jong-Soo Choi, Weol Kyu Jeong, Il Kwon Kim, Seong Han Lim, Heung-Shick Lee
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Publication number: 20090004745Abstract: The present invention relates to the use of nucleic acid sequences for regulating the transcription and expression of genes, the novel promoters and expression units themselves, methods for altering or causing the transcription rate and/or expression rate of genes, expression cassettes comprising the expression units, genetically modified microorganisms with altered or caused transcription rate and/or expression rate, and methods for preparing biosynthetic products by cultivating the genetically modified microorganisms.Type: ApplicationFiled: July 16, 2005Publication date: January 1, 2009Applicant: BASF AktiengesellschaftInventors: Jong-Soo Choi, Weol Kyu Jeong, Il Kwon Kim, Seong Han Lim, Heung-Shick Lee
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Publication number: 20080318286Abstract: The present invention relates to the use of nucleic acid sequences for regulating the transcription and expression of genes, the novel promoters and expression units themselves, methods for altering or causing the transcription rate and/or expression rate of genes, expression cassettes comprising the expression units, genetically modified microorganisms with altered or caused transcription rate and/or expression rate, and methods for preparing biosynthetic products by cultivating the genetically modified microorganisms.Type: ApplicationFiled: July 16, 2005Publication date: December 25, 2008Applicant: BASF AktiengesellschaftInventors: Jong-Soo Choi, Weol Kyu Jeong, II Kwon Kim, Seong Han Lim, Heung-Shick Lee