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).

  • Patent number: 10301588
    Abstract: 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: Grant
    Filed: December 9, 2015
    Date of Patent: May 28, 2019
    Assignee: BASF SE
    Inventors: Birgit Hoff, Stefan Haefner, Weol Kyu Jeong, Edzard Scholten
  • Publication number: 20170369835
    Abstract: 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: Application
    Filed: December 9, 2015
    Publication date: December 28, 2017
    Inventors: Birgit HOFF, Stefan HAEFNER, Weol Kyu JEONG, Edzard SCHOLTEN
  • Patent number: 8906653
    Abstract: 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: Grant
    Filed: January 23, 2009
    Date of Patent: December 9, 2014
    Assignee: BASF SE
    Inventors: Martin Völkert, Oskar Zelder, Burkhard Ernst, Weol Kyu Jeong
  • Publication number: 20140256005
    Abstract: 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: Application
    Filed: May 29, 2014
    Publication date: September 11, 2014
    Applicant: BASF SE
    Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
  • Patent number: 8771998
    Abstract: 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: Grant
    Filed: February 20, 2009
    Date of Patent: July 8, 2014
    Assignee: BASF SE
    Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
  • Patent number: 8741623
    Abstract: 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: Grant
    Filed: March 23, 2007
    Date of Patent: June 3, 2014
    Assignee: BASF SE
    Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
  • Patent number: 8741991
    Abstract: 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: Grant
    Filed: January 29, 2009
    Date of Patent: June 3, 2014
    Assignee: BASF SE
    Inventors: Motonori Yamamoto, Weol Kyu Jeong, Arnold Schneller, Matthias Scheibitz, Freddy Gruber, Jürgen Deininger
  • Publication number: 20120295317
    Abstract: 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: Application
    Filed: December 15, 2010
    Publication date: November 22, 2012
    Applicant: BASF SE
    Inventors: Hartwig Schröder, Weol Kyu Jeong, Annegret Serwe, Oskar Zelder
  • Publication number: 20110207183
    Abstract: 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: Application
    Filed: April 28, 2009
    Publication date: August 25, 2011
    Applicant: BASF SE
    Inventors: Andrea Herold, Hartwig Schröder, Weol Kyu Jeong, Corinna Klopprogge, Oskar Zelder, Stefan Haefner, Ulrike Richter, Judith Becker, Christoph Wittmann
  • Publication number: 20110003963
    Abstract: 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: Application
    Filed: February 4, 2009
    Publication date: January 6, 2011
    Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
  • Publication number: 20100331461
    Abstract: 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: Application
    Filed: January 29, 2009
    Publication date: December 30, 2010
    Applicant: BASF SE
    Inventors: Motonori Yamamoto, Weol Kyu Jeong, Arnold Schneller, Matthias Scheibitz, Freddy Gruber, Jürgen Deininger
  • Publication number: 20100324258
    Abstract: 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: Application
    Filed: February 20, 2009
    Publication date: December 23, 2010
    Applicant: BASF SE
    Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
  • Publication number: 20100292429
    Abstract: 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: Application
    Filed: January 23, 2009
    Publication date: November 18, 2010
    Applicant: BASF SE
    Inventors: Martin Völkert, Oskar Zelder, Burkhard Ernst, Weol Kyu Jeong
  • Publication number: 20100041107
    Abstract: 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: Application
    Filed: October 18, 2007
    Publication date: February 18, 2010
    Applicant: BASF SE
    Inventors: Andrea Herold, Corinna Klopprogge, Hartwig Schröder, Osker Zelder, Weol Kyu Jeong
  • Publication number: 20090325244
    Abstract: 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: Application
    Filed: October 18, 2007
    Publication date: December 31, 2009
    Applicant: BASF SE
    Inventors: Andrea Herold, Corinna Klopprogge, Hartwig Schröder, Oskar Zelder, Weol Kyu Jeong
  • Publication number: 20090246838
    Abstract: 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: Application
    Filed: March 23, 2007
    Publication date: October 1, 2009
    Applicant: BASF SE
    Inventors: Oskar Zelder, Weol Kyu Jeong, Corinna Klopprogge, Andrea Herold, Hartwig Schröder
  • Publication number: 20090170170
    Abstract: 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: Application
    Filed: July 16, 2005
    Publication date: July 2, 2009
    Applicant: BASF Aktiengesellschaft
    Inventors: Jong-Soo Choi, Weol Kyu Jeong, Il Kwon Kim, Seong Han Lim, Heung-Shick Lee
  • Publication number: 20090004745
    Abstract: 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: Application
    Filed: July 16, 2005
    Publication date: January 1, 2009
    Applicant: BASF Aktiengesellschaft
    Inventors: Jong-Soo Choi, Weol Kyu Jeong, Il Kwon Kim, Seong Han Lim, Heung-Shick Lee
  • Publication number: 20080318286
    Abstract: 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: Application
    Filed: July 16, 2005
    Publication date: December 25, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Jong-Soo Choi, Weol Kyu Jeong, II Kwon Kim, Seong Han Lim, Heung-Shick Lee