Patents by Inventor Katja Parschat

Katja Parschat 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: 11898185
    Abstract: The present invention relates to a method for producing fucosylated oligosaccharides by using a recombinant prokaryotic host cell that is cultivated on a gluconeogenic substrate, as well as to the host cell and its use. The host cell is genetically modified in that the activity of a fructose-6-phosphate converting enzyme is abolished or lowered, and the transport of the produced fucosylated oligosaccharide through the cell membrane is facilitated by an exogenous transport protein.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: February 13, 2024
    Assignee: Chr Hansen HMO GmbH
    Inventors: Stefan Jennewein, Dirk Wartenberg, Katja Parschat
  • Publication number: 20230399669
    Abstract: Disclosed are genetically engineered microbial cells for the production of oligosaccharides comprising a galactose-?1,4-glucose moiety at their reducing end, wherein said microbial cells are able to produce said oligosaccharides in the absence of exogenously added lactose, and a method of producing said oligosaccharides using said microbial cells.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 14, 2023
    Applicant: Chr. Hansen HMO GmbH
    Inventors: Stefan Jennewein, Dirk Wartenberg, Katja Parschat
  • Publication number: 20230304052
    Abstract: Disclosed are genetically-engineered gram-negative bacterial cells for the production of an oligosaccharide of interest, wherein the bacterial cell possesses a saccharide transporter and/or a porin being expressed from a recombinant gene or a deregulated endogenous gene, thereby facilitating the translocation of the oligosaccharide of interest from the cell's cytoplasm into the cell's environment. Also disclosed are methods for producing an oligosaccharide of interest which used said genetically-engineered gram-negative bacterial cells.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 28, 2023
    Applicant: Chr. Hansen HMO GmbH
    Inventors: Markus Englert, Stefan Jennewein, Henning Frerigmann, Katja Parschat, Christian Trötschel
  • Patent number: 11713475
    Abstract: Disclosed are genetically engineered microbial cells for the production of oligosaccharides comprising a galactose-?1,4-glucose moiety at their reducing end, wherein said microbial cells are able to produce said oligosaccharides in the absence of exogenously added lactose, and a method of producing said oligosaccharides using said microbial cells.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: August 1, 2023
    Assignee: Chr. Hansen HMO GmbH
    Inventors: Stefan Jennewein, Dirk Wartenberg, Katja Parschat
  • Publication number: 20210317493
    Abstract: Disclosed are genetically engineered microbial cells for the production of oligosaccharides comprising a galactose-?1,4-glucose moiety at their reducing end, wherein said microbial cells are able to produce said oligosaccharides in the absence of exogenously added lactose, and a method of producing said oligosaccharides using said microbial cells.
    Type: Application
    Filed: September 2, 2019
    Publication date: October 14, 2021
    Inventors: Stefan JENNEWEIN, Dirk WARTENBERG, Katja PARSCHAT
  • Patent number: 11066685
    Abstract: The present invention relates to a process for producing a monosaccharide, e.g. L-fucose, in free form using a microbial fermentation process. The used microorganism exhibits hydrolase activity on nucleotide-activated sugars and releases the monosaccharide in an unmodified free form. The free monosaccharide is retrieved from the supernatant of the cultivated microorganism.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 20, 2021
    Assignee: Jennewein Biotechnologie GmbH
    Inventors: Stefan Jennewein, Katja Parschat
  • Publication number: 20200181665
    Abstract: Disclosed are novel fucosyltransferases being capable of transferring a fucose residue from a donor substrate to a lactotetraose, methods for producing fucosylated oligosaccharides utilizing said fucosyltransferases, and the use of the thus produced fucosylated oligosaccharides for manufacturing nutritional compositions.
    Type: Application
    Filed: July 6, 2018
    Publication date: June 11, 2020
    Inventors: Stefan JENNEWEIN, Katja PARSCHAT
  • Publication number: 20200032308
    Abstract: The present invention relates to a process for producing a monosaccharide, e.g. L-fucose, in free form using a microbial fermentation process. The used microorganism exhibits hydrolase activity on nucleotide-activated sugars and releases the monosaccharide in an unmodified free form. The free monosaccharide is retrieved from the supernatant of the cultivated microorganism.
    Type: Application
    Filed: July 24, 2019
    Publication date: January 30, 2020
    Inventors: Stefan Jennewein, Katja Parschat
  • Publication number: 20190309336
    Abstract: The present invention relates to a method for producing fucosylated oligosaccharides by using a recombinant prokaryotic host cell that is cultivated on a gluconeogenic substrate, as well as to the host cell and its use. The host cell is genetically modified in that the activity of a fructose-6-phosphate converting enzyme is abolished or lowered, and the transport of the produced fucosylated oligosaccharide through the cell membrane is facilitated by an exogenous transport protein.
    Type: Application
    Filed: October 24, 2017
    Publication date: October 10, 2019
    Applicant: JENNEWEIN BIOTECHNOLOGIE GMBH
    Inventors: Stefan JENNEWEIN, Dirk WARTENBERG, Katja PARSCHAT
  • Publication number: 20180273996
    Abstract: The present invention relates to a process for producing a monosaccharide, e.g. L-fucose, in free form using a microbial fermentation process. The used microorganism exhibits hydrolase activity on nucleotide-activated sugars and releases the monosaccharide in an unmodified free form. The free monosaccharide is retrieved from the supernatant of the cultivated microorganism.
    Type: Application
    Filed: January 29, 2016
    Publication date: September 27, 2018
    Inventors: Stefan JENNEWEIN, Katja PARSCHAT
  • Patent number: 9938549
    Abstract: The present invention relates to a process for producing a monosaccharide using a microorganism. The microorganism possesses a glycosyltransferase and a glycosidase which work together to synthesize a desired monosaccharide in free form by using an endogenous provided nucleotide activated monosaccharide, glycosylate a suitable acceptor substrate and release the desired monosaccharide by a hydrolysis reaction. The required acceptor substrate for the reaction is recycled and only needed in catalytic amounts. The monosaccharide is produced in free from and is retrieved from the supernatant of the cultivated microorganism.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: April 10, 2018
    Assignee: Jennewein Biotechnologie GmbH
    Inventors: Stefan Jennewein, Katja Parschat
  • Publication number: 20150240277
    Abstract: The present invention relates to a process for producing a monosaccharide using a microorganism. The microorganism possesses a glycosyltransferase and a glycosidase which work together to synthesize a desired monosaccharide in free form by using an endogenous provided nucleotide activated monosaccharide, glycosylate a suitable acceptor substrate and release the desired monosaccharide by a hydrolysis reaction. The required acceptor substrate for the reaction is recycled and only needed in catalytic amounts. The monosaccharide is produced in free from and is retrieved from the supernatant of the cultivated microorganism.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 27, 2015
    Applicant: JENNEWEIN BIOTECHNOLOGIE GMBH
    Inventors: Stefan Jennewein, Katja Parschat