Patents by Inventor Peter Casteels

Peter Casteels 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: 20260042798
    Abstract: The present invention relates method for purifying antibodies, said method comprising a limited number of steps while still allowing obtaining high yields of purified antibodies with an appropriate degree of purity. Briefly, this method comprises only filtration and precipitation steps, omitting the need for chromatography steps.
    Type: Application
    Filed: October 22, 2025
    Publication date: February 12, 2026
    Applicant: Ablynx N.V.
    Inventors: Peter Casteels, Willem Van De Velde, Anthony Van De Putte, Sindi De Vrieze
  • Publication number: 20260007757
    Abstract: The present technology relates to the field of drug delivery and provides molecules comprising or consisting of at least one protein-based carrier building block, wherein the protein-based carrier building block comprises at least two attachment point(s) or conjugation site(s), wherein the molecule further comprises (i) at least two antibody-binding components, preferably at least two hapten units, preferably selected from phosphorylcholine, dinitrophenyl (DNP), galactose-?-1,3-galactose (?Gal) and rhamnose (Rha), more preferably at least two rhamnose molecules, covalently linked, directly or by means of a linker, to at least one conjugation site or attachment point comprised in the at least one protein-based building block and (ii) at least one targeting moiety covalently linked, directly or by means of a linker, to at least one conjugation site or attachment point comprised in the at least one protein-based building block.
    Type: Application
    Filed: June 18, 2025
    Publication date: January 8, 2026
    Applicant: Ablynx NV
    Inventors: Peter Casteels, Lien De Vogelaere, Ellen Foubert
  • Patent number: 12479885
    Abstract: The present invention relates method for purifying antibodies, said method comprising a limited number of steps while still allowing obtaining high yields of purified antibodies with an appropriate degree of purity. Briefly, this method comprises only filtration and precipitation steps, omitting the need for chromatography steps.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 25, 2025
    Assignee: Ablynx N.V.
    Inventors: Peter Casteels, Willem Van De Velde, Anthony Van De Putte, Sindi De Vrieze
  • Patent number: 12384835
    Abstract: The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: August 12, 2025
    Assignee: Ablynx N.V.
    Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
  • Publication number: 20240415974
    Abstract: The present technology relates to the field of drug delivery and provides molecules comprising or consisting of at least one protein-based carrier building block, wherein the protein-based carrier building block comprises at least one, preferably at least two, attachment point(s) or conjugation site(s). In particular, the technology provides a molecule comprising at least one protein-based building block, wherein the at least one protein-based building block: a) comprises at least one conjugation site or attachment point; b) has a molecular mass of 2.5 to 70 kDa; c) has a globular three-dimensional (3D) structure; d) has a solubility of 10 mg/ml or more, measured in an aqueous solution at room temperature; and does not specifically bind to any human protein or binds one or more human proteins with a KD value greater than 5×10?4 mol/litre.
    Type: Application
    Filed: December 22, 2023
    Publication date: December 19, 2024
    Applicant: Ablynx N.V.
    Inventors: Carlo Boutton, Peter Casteels, Alexandra Ferrier Berthelot, Raf Ponsaerts, John Reed
  • Patent number: 12083219
    Abstract: The present invention relates to methods for the preparation of an aerosol. More specifically the present invention provides methods for the preparation of an aerosol of immunoglobulin single variable domains wherein the amount of aggregate formation is significantly reduced. The invention further provides aerosols prepared by the methods of the invention, as well as compositions for use in the methods of the invention. The invention further relates to methods for the preparations of such compositions, to containers, kits and aerosol delivery systems comprising such compositions and to uses of the same.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: September 10, 2024
    Assignee: Ablynx N.V.
    Inventors: Erik Depla, Mauro Sergi, Peter Casteels
  • Publication number: 20230211006
    Abstract: The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
    Type: Application
    Filed: June 27, 2022
    Publication date: July 6, 2023
    Applicant: Ablynx N.V.
    Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
  • Patent number: 11426468
    Abstract: The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (1ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: August 30, 2022
    Assignee: Ablynx N.V.
    Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
  • Publication number: 20210371457
    Abstract: The present invention relates method for purifying antibodies, said method comprising a limited number of steps while still allowing obtaining high yields of purified antibodies with an appropriate degree of purity. Briefly, this method comprises only filtration and precipitation steps, omitting the need for chromatography steps.
    Type: Application
    Filed: October 8, 2019
    Publication date: December 2, 2021
    Applicant: Ablynx N.V.
    Inventors: Peter Casteels, Willem Van De Velde, Anthony Van De Putte, Sindi De Vrieze
  • Publication number: 20210346287
    Abstract: The present invention relates to methods for the preparation of an aerosol. More specifically the present invention provides methods for the preparation of an aerosol of immunoglobulin single variable domains wherein the amount of aggregate formation is significantly reduced. The invention further provides aerosols prepared by the methods of the invention, as well as compositions for use in the methods of the invention. The invention further relates to methods for the preparations of such compositions, to containers, kits and aerosol delivery systems comprising such compositions and to uses of the same.
    Type: Application
    Filed: April 19, 2021
    Publication date: November 11, 2021
    Applicant: Ablynx N.V.
    Inventors: Erik Depla, Mauro Sergi, Peter Casteels
  • Patent number: 11021544
    Abstract: The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: June 1, 2021
    Assignee: Ablynx N.V.
    Inventors: Carlo Boutton, Daniel Janssen, Peter Casteels, Peter Schotte, Francis Descamps
  • Patent number: 11007146
    Abstract: The present invention relates to methods for the preparation of an aerosol. More specifically the present invention provides methods for the preparation of an aerosol of immunoglobulin single variable domains wherein the amount of aggregate formation is significantly reduced. The invention further provides aerosols prepared by the methods of the invention, as well as compositions for use in the methods of the invention. The invention further relates to methods for the preparations of such compositions, to containers, kits and aerosol delivery systems comprising such compositions and to uses of the same.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 18, 2021
    Assignee: Ablynx N.V.
    Inventors: Erik Depla, Mauro Sergi, Peter Casteels
  • Patent number: 10544211
    Abstract: The present invention relates to amino acid sequences, compounds and polypeptides binding to tumor necrosis factor alpha (“TNF” or “TNF-alpha”). In particular, the present invention relates to improved heavy-chain immunoglobulin single variable domains (also referred to herein as “ISV's” or “ISVDs”) binding to tumor necrosis factor alpha, as well as to proteins, polypeptides and other constructs, compounds, molecules or chemical entities that comprise such ISVDs, collectively TNF binders. Other aspects, embodiments, features, uses and advantages of the invention will be clear to the skilled person based on the disclosure herein.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: January 28, 2020
    Assignee: Ablynx N.V.
    Inventors: Marie-Ange Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke
  • Publication number: 20190100599
    Abstract: The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
    Type: Application
    Filed: February 5, 2016
    Publication date: April 4, 2019
    Applicant: Ablynx N.V.
    Inventors: Carlo Boutton, Daniel Janssen, Peter Casteels, Peter Schotte, Francis Descamps
  • Publication number: 20170360955
    Abstract: The present invention relates to dimers comprising a first polypeptide and a second polypeptide, wherein each of said first and second polypeptide comprises at least one immunoglobulin single variable domain (1ISVD) and a C-terminal extension comprising a cysteine moiety (preferably at the C-terminus), wherein said first polypeptide and said second polypeptide are covalently linked via a disulfide bond between the cysteine moiety of said first polypeptide and the cysteine moiety of said second polypeptide, in which the dimer outperformed the benchmark constructs, e.g. cognate multivalent and multispecific constructs, in various assays. The present invention provides methods for making the dimers of the invention.
    Type: Application
    Filed: December 18, 2015
    Publication date: December 21, 2017
    Applicant: ABLYNX N.V.
    Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
  • Publication number: 20170333344
    Abstract: The present invention relates to methods for the preparation of an aerosol. More specifically the present invention provides methods for the preparation of an aerosol of immunoglobulin single variable domains wherein the amount of aggregate formation is significantly reduced. The invention further provides aerosols prepared by the methods of the invention, as well as compositions for use in the methods of the invention. The invention further relates to methods for the preparations of such compositions, to containers, kits and aerosol delivery systems comprising such compositions and to uses of the same.
    Type: Application
    Filed: April 24, 2017
    Publication date: November 23, 2017
    Applicant: Ablynx N.V.
    Inventors: ERIK DEPLA, Mauro Sergi, Peter Casteels
  • Publication number: 20170267752
    Abstract: The present invention relates to amino acid sequences, compounds and polypeptides binding to tumor necrosis factor alpha (“TNF” or “TNF-alpha”). In particular, the present invention relates to improved heavy-chain immunoglobulin single variable domains (also referred to herein as “ISV's” or “ISVDs”) binding to tumor necrosis factor alpha, as well as to proteins, polypeptides and other constructs, compounds, molecules or chemical entities that comprise such ISVDs, collectively TNF binders. Other aspects, embodiments, features, uses and advantages of the invention will be clear to the skilled person based on the disclosure herein.
    Type: Application
    Filed: November 14, 2016
    Publication date: September 21, 2017
    Applicant: Ablynx N.V.
    Inventors: Marie-Ange Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke
  • Patent number: 9745372
    Abstract: The present invention relates to amino acid sequences, compounds and polypeptides binding to tumor necrosis factor alpha (“TNF” or “TNF-alpha”). In particular, the present invention relates to improved heavy-chain immunoglobulin single variable domains (also referred to herein as “ISV's” or “ISVDs”) binding to tumor necrosis factor alpha, as well as to proteins, polypeptides and other constructs, compounds, molecules or chemical entities that comprise such ISVDs, collectively TNF binders. Other aspects, embodiments, features, uses and advantages of the invention will be clear to the skilled person based on the disclosure herein.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 29, 2017
    Assignee: Ablynx N.V.
    Inventors: Marie-Ange Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke
  • Patent number: 9713589
    Abstract: The present invention relates to methods for the preparation of an aerosol. More specifically the present invention provides methods for the preparation of an aerosol of immunoglobulin single variable domains wherein the amount of aggregate formation is significantly reduced. The invention further provides aerosols prepared by the methods of the invention, as well as compositions for use in the methods of the invention. The invention further relates to methods for the preparations of such compositions, to containers, kits and aerosol delivery systems comprising such compositions and to uses of the same.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: July 25, 2017
    Assignee: Ablynx N.V.
    Inventors: Erik Depla, Mauro Sergi, Peter Casteels
  • Publication number: 20170190769
    Abstract: The present invention relates to amino acid sequences, compounds and polypeptides binding to tumor necrosis factor alpha (“TNF” or “TNF-alpha”). In particular, the present invention relates to improved heavy-chain immunoglobulin single variable domains (also referred to herein as “ISV's” or “ISVDs”) binding to tumor necrosis factor alpha, as well as to proteins, polypeptides and other constructs, compounds, molecules or chemical entities that comprise such ISVDs, collectively TNF binders. Other aspects, embodiments, features, uses and advantages of the invention will be clear to the skilled person based on the disclosure herein.
    Type: Application
    Filed: March 13, 2017
    Publication date: July 6, 2017
    Applicant: Ablynx N.V.
    Inventors: MARIE-ANGE Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke