Patents by Inventor Jens Daufenbach

Jens Daufenbach 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: 20240010707
    Abstract: The present invention relates to the field of therapeutic proteins, in particular, to recombinant coagulation factors. It provides a recombinant Factor VIII (FVIII) protein comprising specific point mutations at defined positions, which serve to reduce the immunogenicity of said FVIII protein, wherein the Factor VIII protein substantially retains its coagulant activity. It further provides nucleic acids encoding said de-immunized protein, cell lines and methods of recombinant preparation as well as pharmaceutical compositions comprising the recombinant FVIII of the invention, which are advantageous for use in treatment of patients with Hemophilia A, particularly those who have not yet been treated with a FVIII product. Additionally, it can be a safe alternative for previously treated patients and even for patients who have developed an immune-response to FVIII, e.g., for immune-tolerance-induction therapy (ITI/ITT) or rescue ITI.
    Type: Application
    Filed: April 11, 2019
    Publication date: January 11, 2024
    Inventors: Karina Winterling, Steffen Kistner, Jens Daufenbach, Annie de Groot, William Martin, Christopher Ungerer
  • Publication number: 20230159610
    Abstract: The present invention relates to the field of immunology, in particular, to the field of modulation of immune responses, in particular, suppression of immune responses and/or induction of tolerance. It provides a tregitope (regulatory T cell activating epitope) carrying polypeptide based on sequences derived from the Fc part of human IgG, wherein said TCP comprises at least one tregitope heterologous to human IgG that is located within at least one of three specific sequence frames. The invention provides such polypeptides for multiple purposes, e.g., in monomeric or dimeric form, wherein both are optionally be linked to an agent, e.g., to which an immune response is to be modulated or suppressed, or co-administered to such an agent, or for use as a stand-alone therapeutic. Nucleic acids encoding the TCP of the invention, pharmaceutic compositions and uses of said TCP are also provided.
    Type: Application
    Filed: March 26, 2021
    Publication date: May 25, 2023
    Inventors: Steffen KISTNER, Jens DAUFENBACH, Christopher UNGERER, Peter HERBENER, Holger WALLMEIER
  • Publication number: 20220259287
    Abstract: The present invention relates to a recombinant Factor VIII protein comprising, in a single chain, a heavy chain portion comprising an A1 and an A2 domain and a light chain portion comprising an A3, C1 and C2 domain of Factor VIII, wherein the B-domain is partially deleted in two deletions, the first leading to the presence of a defined processing sequence cleavable by thrombin, and the second leading to absence of the furin cleavage recognition site at position R1664-R1667. An internal fragment of the B-domain is maintained Nucleic acids encoding said protein, host cells and methods of preparing the protein are also provided, as well as a pharmaceutical composition comprising the protein, nucleic acid or host cell, which may be used for treatment of hemophilia A.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 18, 2022
    Inventors: Steffen Kistner, Christopher Ungerer, Jens Daufenbach, Peter Herbener
  • Patent number: 10322169
    Abstract: A process for preparing a powder, which includes one or more human coagulation factor proteins and a lactic acid polymer, involves mixing and dispersing a lactic acid polymer with a particle size d50 in the range 0.1-2 ?m and the one or more human coagulation factor proteins in water. The dispersion is dried, and the resulting dried mass is compressed. The resulting compressed dried mass is comminuted to a powder with a particle size d50 in the range of more than 0.5 and up to 5 ?m.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: June 18, 2019
    Assignee: Evonik Roehm GmbH
    Inventors: Juan Tome-Alcalde, Norbert Windhab, Melanie Liefke, Anne Benedikt, Jessica Müller-Albers, Tom Tice, Susanne Ullrich, Andrea Engel, Matthias Germer, Steffen Kistner, Jens Daufenbach
  • Publication number: 20180153967
    Abstract: A process for preparing a powder, which includes one or more human coagulation factor proteins and a lactic acid polymer, involves mixing and dispersing a lactic acid polymer with a particle size d50 in the range 0.1-2 ?m and the one or more human coagulation factor proteins in water. The dispersion is dried, and the resulting dried mass is compressed. The resulting compressed dried mass is comminuted to a powder with a particle size d50 in the range of more than 0.5 and up to 5 ?m.
    Type: Application
    Filed: June 6, 2016
    Publication date: June 7, 2018
    Applicant: Evonik Roehm GmbH
    Inventors: Juan Tome-Alcalde, Norbert Windhab, Melanie Liefke, Anne Benedikt, Jessica Müller-Albers, Tom Tice, Susanne Ullrich, Andrea Engel, Matthias Germer, Steffen Kistner, Jens Daufenbach