Patents by Inventor Heiko Walch

Heiko Walch 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).

  • Publication number: 20240101643
    Abstract: Herein is reported a method for producing an antibody comprising the steps of forming an antibody-antibody light chain affinity ligand complex, wherein the antibody light chain affinity ligand is immobilized on a solid phase, by applying a solution comprising the antibody to the immobilized antibody light chain affinity ligand, and incubating the complex formed in the previous step with one or more enzymes to modify the glycosylation of the antibody, thereby producing the antibody.
    Type: Application
    Filed: May 16, 2023
    Publication date: March 28, 2024
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Roberto FALKENSTEIN, Heiko WALCH, Sebastian MALIK, Marco THOMANN, Matthias FREIHERR VON ROMAN, Ingrid GRUNERT, Roland DORN, Michael HINGAR
  • Patent number: 11767342
    Abstract: Herein is reported a method for the enzymatic production of an antibody with a modified glycosylation in the Fc-region comprising the steps of incubating the antibody light chain affinity ligand-bound monoclonal antibody with a glycosylation in the Fc-region with a first enzyme for a time sufficient and under conditions suitable to modify the glycosylation of the Fc-region, recovering the antibody from the antibody light chain affinity ligand, incubating the recovered antibody in solution with a second enzyme for a time sufficient and under conditions suitable to modify the glycosylation of the Fc-region to a defined form, separating the antibody with the modified glycosylation in the Fc-region from the second enzyme in a cation exchange chromatography, and thereby producing the antibody with a modified glycosylation in the Fc-region.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 26, 2023
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Thomas Dams, Roberto Falkenstein, Sebastian Malik, Ingrid Grunert, Marco Thomann, Matthias Freiherr Von Roman, Heiko Walch
  • Publication number: 20230203460
    Abstract: The present invention relates to a mutant reverse transcriptase (RT) with increased thermal stability relative to the wildtype, a nucleic acid encoding the mutant RT, a cell comprising the mutant RT or the nucleic acid, a kit comprising the mutant RT, the use of the mutant RT for cDNA synthesis, method for reverse transcription of RNA comprising synthesizing cDNA with the use of the mutant RT and a method for detecting an RNA marker in a sample with the use of the mutant RT.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 29, 2023
    Inventors: Christian Helmut Bell, Harald Sobek, Heiko Walch, Kiyoshi Yasukawa, Misato Baba
  • Patent number: 11618892
    Abstract: The present invention relates to a mutant reverse transcriptase (RT) with increased thermal stability relative to the wildtype, a nucleic acid encoding the mutant RT, a cell comprising the mutant RT or the nucleic acid, a kit comprising the mutant RT, the use of the mutant RT for cDNA synthesis, method for reverse transcription of RNA comprising synthesizing cDNA with the use of the mutant RT and a method for detecting an RNA marker in a sample with the use of the mutant RT.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: April 4, 2023
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Christian Helmut Bell, Harald Sobek, Heiko Walch, Kiyoshi Yasukawa, Misato Baba
  • Publication number: 20200165296
    Abstract: Herein is reported a method for the enzymatic production of an antibody with a modified glycosylation in the Fc-region comprising the steps of incubating the antibody light chain affinity ligand-bound monoclonal antibody with a glycosylation in the Fc-region with a first enzyme for a time sufficient and under conditions suitable to modify the glycosylation of the Fc-region, recovering the antibody from the antibody light chain affinity ligand, incubating the recovered antibody in solution with a second enzyme for a time sufficient and under conditions suitable to modify the glycosylation of the Fc-region to a defined form, separating the antibody with the modified glycosylation in the Fc-region from the second enzyme in a cation exchange chromatography, and thereby producing the antibody with a modified glycosylation in the Fc-region.
    Type: Application
    Filed: June 20, 2019
    Publication date: May 28, 2020
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Thomas DAMS, Roberto FALKENSTEIN, Sebastian MALIK, Ingrid GRUNERT, Marco Thomann, Matthias FREIHERR VON ROMAN, Heiko Walch
  • Publication number: 20200165320
    Abstract: Herein is reported a method for producing an antibody comprising the steps of forming an antibody-antibody light chain affinity ligand complex, wherein the antibody light chain affinity ligand is immobilized on a solid phase, by applying a solution comprising the antibody to the immobilized antibody light chain affinity ligand, and incubating the complex formed in the previous step with one or more enzymes to modify the glycosylation of the antibody, thereby producing the antibody.
    Type: Application
    Filed: June 20, 2019
    Publication date: May 28, 2020
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Roberto FALKENSTEIN, Heiko WALCH, Sebastian MALIK, Marco THOMANN, Matthias FREIHERR VON ROMAN, Ingrid GRUNERT, Roland DORN, Michael HINGAR
  • Publication number: 20200165321
    Abstract: Herein is reported a method for the enzymatic preparation/production of an antibody with a modified glycosylation in the Fc-region comprises the steps of incubating an antibody that has a glycosylation in the Fc-region with one or more enzymes for a time sufficient and under conditions suitable to modify the glycosylation of the Fc-region to a defined form, separating in one or more chromatography steps the antibody with a modified glycosylation in the Fc-region from the one or more enzymes and thereby producing the antibody with a modified glycosylation in the Fc-region and one or more recycled enzymes, and repeating the incubating step with the one or more recycled enzymes at least once.
    Type: Application
    Filed: June 20, 2019
    Publication date: May 28, 2020
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Roberto Falkenstein, Sebastian Malik, Ingrid Grunert, Marco Thomann, Matthias Freiherr Von Roman, Heiko Walch
  • Publication number: 20200040316
    Abstract: The present invention relates to a mutant reverse transcriptase (RT) with increased thermal stability relative to the wildtype, a nucleic acid encoding the mutant RT, a cell comprising the mutant RT or the nucleic acid, a kit comprising the mutant RT, the use of the mutant RT for cDNA synthesis, method for reverse transcription of RNA comprising synthesizing cDNA with the use of the mutant RT and a method for detecting an RNA marker in a sample with the use of the mutant RT.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Inventors: Christian Helmut Bell, Harald Sobek, Heiko Walch, Kiyoshi Yasukawa, Misato Baba
  • Publication number: 20120225428
    Abstract: The present disclosure relates to a composition comprising a first set of probes and a second set of probes, composed of one or more DNA nucleotide(s) and five or more LNA (locked nucleic acid) nucleotides, wherein the base at a discriminating position differs for a first probe of the first set and a first probe of the second set. The present disclosure relates to the composition comprising a plurality of probes in each of the first and second set of probes, wherein the probes in each set differ in one, two, or three LNA random position(s). Further, the present disclosure relates to a method of detecting genomic variants by means of the aforementioned probes.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 6, 2012
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Reinhard Beck, Frank Bergmann, Rita Haerteis, Dieter Heindl, Ralf Mauritz, Heiko Walch