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).
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Publication number: 20260042798Abstract: 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: ApplicationFiled: October 22, 2025Publication date: February 12, 2026Applicant: Ablynx N.V.Inventors: Peter Casteels, Willem Van De Velde, Anthony Van De Putte, Sindi De Vrieze
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Publication number: 20260007757Abstract: 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: ApplicationFiled: June 18, 2025Publication date: January 8, 2026Applicant: Ablynx NVInventors: Peter Casteels, Lien De Vogelaere, Ellen Foubert
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Patent number: 12479885Abstract: 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: GrantFiled: October 8, 2019Date of Patent: November 25, 2025Assignee: Ablynx N.V.Inventors: Peter Casteels, Willem Van De Velde, Anthony Van De Putte, Sindi De Vrieze
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Patent number: 12384835Abstract: 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: GrantFiled: June 27, 2022Date of Patent: August 12, 2025Assignee: Ablynx N.V.Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
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Publication number: 20240415974Abstract: 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: ApplicationFiled: December 22, 2023Publication date: December 19, 2024Applicant: Ablynx N.V.Inventors: Carlo Boutton, Peter Casteels, Alexandra Ferrier Berthelot, Raf Ponsaerts, John Reed
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Patent number: 12083219Abstract: 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: GrantFiled: April 19, 2021Date of Patent: September 10, 2024Assignee: Ablynx N.V.Inventors: Erik Depla, Mauro Sergi, Peter Casteels
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Publication number: 20230211006Abstract: 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: ApplicationFiled: June 27, 2022Publication date: July 6, 2023Applicant: Ablynx N.V.Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
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Patent number: 11426468Abstract: 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: GrantFiled: December 18, 2015Date of Patent: August 30, 2022Assignee: Ablynx N.V.Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
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Publication number: 20210371457Abstract: 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: ApplicationFiled: October 8, 2019Publication date: December 2, 2021Applicant: Ablynx N.V.Inventors: Peter Casteels, Willem Van De Velde, Anthony Van De Putte, Sindi De Vrieze
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Publication number: 20210346287Abstract: 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: ApplicationFiled: April 19, 2021Publication date: November 11, 2021Applicant: Ablynx N.V.Inventors: Erik Depla, Mauro Sergi, Peter Casteels
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Patent number: 11021544Abstract: 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: GrantFiled: February 5, 2016Date of Patent: June 1, 2021Assignee: Ablynx N.V.Inventors: Carlo Boutton, Daniel Janssen, Peter Casteels, Peter Schotte, Francis Descamps
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Patent number: 11007146Abstract: 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: GrantFiled: April 24, 2017Date of Patent: May 18, 2021Assignee: Ablynx N.V.Inventors: Erik Depla, Mauro Sergi, Peter Casteels
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Patent number: 10544211Abstract: 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: GrantFiled: November 14, 2016Date of Patent: January 28, 2020Assignee: Ablynx N.V.Inventors: Marie-Ange Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke
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Publication number: 20190100599Abstract: 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: ApplicationFiled: February 5, 2016Publication date: April 4, 2019Applicant: Ablynx N.V.Inventors: Carlo Boutton, Daniel Janssen, Peter Casteels, Peter Schotte, Francis Descamps
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Publication number: 20170360955Abstract: 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: ApplicationFiled: December 18, 2015Publication date: December 21, 2017Applicant: ABLYNX N.V.Inventors: Daniel Janssen, Peter Schotte, Francis Descamps, Carlo Boutton, Peter Casteels
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Publication number: 20170333344Abstract: 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: ApplicationFiled: April 24, 2017Publication date: November 23, 2017Applicant: Ablynx N.V.Inventors: ERIK DEPLA, Mauro Sergi, Peter Casteels
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Publication number: 20170267752Abstract: 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: ApplicationFiled: November 14, 2016Publication date: September 21, 2017Applicant: Ablynx N.V.Inventors: Marie-Ange Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke
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Patent number: 9745372Abstract: 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: GrantFiled: March 13, 2017Date of Patent: August 29, 2017Assignee: Ablynx N.V.Inventors: Marie-Ange Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke
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Patent number: 9713589Abstract: 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: GrantFiled: February 11, 2011Date of Patent: July 25, 2017Assignee: Ablynx N.V.Inventors: Erik Depla, Mauro Sergi, Peter Casteels
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Publication number: 20170190769Abstract: 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: ApplicationFiled: March 13, 2017Publication date: July 6, 2017Applicant: Ablynx N.V.Inventors: MARIE-ANGE Buyse, Joachim Boucneau, Peter Casteels, Gino Van Heeke