Patents by Inventor Johan Seijsing

Johan Seijsing 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: 20200199197
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for the neonatal Fc receptor (in the following referred to as FcRn), and provides an FcRn binding polypeptide comprising the sequence EX2 X3 X4 AX6 X7 EIRWLPNL X16X17 X18 QRX21 AFIX25 X26LX28 X29 (SEQ ID NO:1075). The present disclosure also relates to the use of such an FcRn binding polypeptide as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Application
    Filed: January 15, 2020
    Publication date: June 25, 2020
    Inventors: Caroline Ekblad, Elin Gunneriusson, Malin Lindborg, Lars Abrahmsen, John Löfblom, Torbjörn Gräslund, Johan Seijsing
  • Patent number: 10562955
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for the neonatal Fc receptor (in the following referred to as FcRn), and provides an FcRn binding polypeptide comprising the sequence EX2 X3 X4 AX6 X7 EIRWLPNL X16X17 X18 QRX21 AFIX25 X26LX28 X29. The present disclosure also relates to the use of such an FcRn binding polypeptide as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: February 18, 2020
    Assignee: AFFIBODY AB
    Inventors: Caroline Ekblad, Elin Gunneriusson, Malin Lindborg, Lars Abrahmsen, John Löfblom, Torbjörn Gräslund, Johan Seijsing
  • Publication number: 20190284241
    Abstract: The present disclosure relates to dimers of engineered polypeptides having a binding affinity for the neonatal Fc receptor FcRn, and provides an FcRn binding dimer, comprising a first monomer unit, a second monomer unit and an amino acid linker, wherein the first and second monomer units each comprises an FcRn binding motif. The FcRn binding dimer binds FcRn with higher capacity compared to the first monomer unit or second monomer unit alone. The present disclosure also relates to the use of the FcRn binding dimer as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Application
    Filed: April 8, 2019
    Publication date: September 19, 2019
    Inventors: Lars Abrahmsén, Caroline Ekblad, Elin Gunneriusson, Torbjörn Gräslund, Johan Seijsing, John Löfblom, Malin Lindborg, Fredrik Frejd, Lindvi Gudmundsdotter
  • Patent number: 10323066
    Abstract: The present disclosure relates to dimers of engineered polypeptides having a binding affinity for the neonatal Fc receptor FcRn, and provides an FcRn binding dimer, comprising a first monomer unit, a second monomer unit and an amino acid linker, wherein the first and second monomer units each comprises an FcRn binding motif. The FcRn binding dimer binds FcRn with higher capacity compared to the first monomer unit or second monomer unit alone. The present disclosure also relates to the use of the FcRn binding dimer as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: June 18, 2019
    Assignee: AFFIBODY AB
    Inventors: Lars Abrahmsén, Caroline Ekblad, Elin Gunneriusson, Torbjörn Gräslund, Johan Seijsing, John Löfblom, Malin Lindborg, Fredrik Frejd, Lindvi Gudmundsdotter
  • Patent number: 9975943
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for the neonatal Fc receptor (in the following referred to as FcRn), and provides an FcRn binding polypeptide comprising the sequence EX2X3X4AX6X7 EIRWLPNL X16X17X18QRX21 AFIX25X26LX28X29 (SEQ ID NO: 1075). The present disclosure also relates to the use of such an FcRn binding polypeptide as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: May 22, 2018
    Assignee: AFFIBODY AB
    Inventors: Caroline Ekblad, Elin Gunneriusson, Malin Lindborg, Lars Abrahmsen, John Löblom, Torbjörn Gräslund, Johan Seijsing
  • Publication number: 20180118807
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for the neonatal Fc receptor (in the following referred to as FcRn), and provides an FcRn binding polypeptide comprising the sequence EX2 X3 X4 AX6 X7 EIRWLPNL X16X17 X18 QRX21 AFIX25 X26LX28 X29. The present disclosure also relates to the use of such an FcRn binding polypeptide as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Application
    Filed: December 14, 2017
    Publication date: May 3, 2018
    Inventors: Caroline Ekblad, Elin Gunneriusson, Malin Lindborg, Lars Abrahmsen, John Löfblom, Torbjörn Gräslund, Johan Seijsing
  • Patent number: 9873729
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for the neonatal Fc receptor (in the following referred to as FcRn), and provides an FcRn binding polypeptide comprising the sequence EX2X3X4AX6X7 EIRWLPNL X16X17X18QRX21 AFIX25X26LX28X29 (SEQ ID NO: 1075). The present disclosure also relates to the use of such an FcRn binding polypeptide as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: January 23, 2018
    Assignee: AFFIBODY AB
    Inventors: Caroline Ekblad, Elin Gunneriusson, Malin Lindborg, Lars Abrahmsen, John Löblom, Torbjörn Gräslund, Johan Seijsing
  • Publication number: 20170260238
    Abstract: The present disclosure relates to dimers of engineered polypeptides having a binding affinity for the neonatal Fc receptor FcRn, and provides an FcRn binding dimer, comprising a first monomer unit, a second monomer unit and an amino acid linker, wherein said first and second monomer unit search comprises an FcRn binding motif. Said FcRn binding dimer binds FcRn with higher capacity compared to said first monomer unit or second monomer unit alone. The present disclosure also relates to the use of said FcRn binding dimer as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Application
    Filed: September 17, 2015
    Publication date: September 14, 2017
    Applicant: Affibody AB
    Inventors: Lars Abrahmsén, Caroline Ekblad, Elin Gunneriusson, Torbjörn Gräslund, Johan Seijsing, John Löfblom, Malin Lindborg, Fredrik Frejd, Lindvi Gudmundsdotter
  • Publication number: 20160031967
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for the neonatal Fc receptor (in the following referred to as FcRn), and provides an FcRn binding polypeptide comprising the sequence EX2X3X4AX6X7 EIRWLPNL X16X17X18QRX21 AFIX25X26LX28X29 (SEQ ID NO: 1075). The present disclosure also relates to the use of such an FcRn binding polypeptide as an agent for modifying pharmacokinetic and pharmacodynamic properties and as a therapeutic agent.
    Type: Application
    Filed: March 17, 2014
    Publication date: February 4, 2016
    Inventors: Caroline Ekblad, Elin Gunneriusson, Malin Lindborg, Lars Abrahmsen, John Löfblom, Torbjörn Gräslund, Johan Seijsing