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: 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
  • Publication number: 20130019860
    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: February 11, 2011
    Publication date: January 24, 2013
    Applicant: Ablynx N.V.
    Inventors: Erik Depla, Mauro Sergi, Peter Casteels
  • Publication number: 20110091462
    Abstract: In a broad aspect the present invention generally relates to novel dimer-complexes (herein called “non-fused-dimers” or NFDs) comprising single variable domains, methods of making these complexes and uses thereof. These non-covalently bound dimer-complexes consist of two identical monomers that each comprises of one or more single variable domains (homodimers) or of two different monomers that each comprises on or more single variable domains (heterodimers). The subject NFDs have typically altered e.g. improved binding characteristics over their monomeric counterpart. The NFDs of the invention may further be engineered through linkage by a flexible peptide or cysteines in order to improve the stability. This invention also describes conditions under which such NFDs are formed and conditions under which the formation of such dimers can be avoided.
    Type: Application
    Filed: March 5, 2009
    Publication date: April 21, 2011
    Applicant: ABLYNX N.V.
    Inventors: Peter Casteels, Marc Jozef Lauwereys, Patrick Stanssens, Christine Labeur, Carlo Boutton, Ann Brigé, Hendricus Renerus Jacobus M Hoogenboom, Els Anna Alice Beirnaert
  • Patent number: 5466671
    Abstract: This invention provides a purified polypeptide having antibacterial activity comprising a first sequence Pro-Arg-Pro-Pro-His-Pro-Arg-X1, wherein X1 is Ile or Leu; and a second sequence X2-Pro-X3-X4-X5-Pro, wherein X2 is Arg or Lys, X3 is Thr, Gln or Arg, X4 is Tyr, Gln or Pro, and X5 is Val or Ala, the second sequence is N-terminal to the first sequence. This invention also provides a purified polypeptide having antibacterial activity comprising: a first sequence, at least seven amino acid residues are the same as Pro-Arg-Pro-Pro-His-Pro-Arg-X1, wherein X1 is Ile or Leu; a second sequence X2-Pro-X3-X4X5-Pro, wherein X2 is Arg or Lys, X3 is Thr, Gln or Arg, X4 is Tyr, Gln or Pro, and X5 is Val or Ala, the second sequence is N-terminal to the first sequence; and a third sequence comprising at least five amino acid residues, at least one-third of the residues are Pro, the third sequence is N-terminal to the second sequence.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: November 14, 1995
    Assignee: Sloan-Kettering Institute for Cancer Research
    Inventors: Paul Tempst, Peter Casteels
  • Patent number: 5300629
    Abstract: New bactericidal and/or bacteriostatic, thermostable peptides which are isolated from hemolymph of immune honeybees and which are distinct from lysozymes, attacins, cecropins, diptericins and magainins. The peptides feature at least the 10 C-terminal amino acids of the following peptide:H.sub.2 N-Gly-Asn-Asn-Arg-Pro-X-Tyr-Ile-Pro-Gln-Pro-Arg-Pro-Pro-His-Pro-Arg-Z-OHin whichX is a valyl or isoleucyl residue andZ is a leucyl or isoleucyl residue.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: April 5, 1994
    Assignee: Plant Genetic Systems, N.V.
    Inventors: Peter Casteels, Paul Tempst, Frans Jacobs, Mark Vaeck