Patents by Inventor Erwin Houtzager

Erwin Houtzager 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: 20160238600
    Abstract: Described are combinations of specific binding proteins, such as immunoglobulins, that are designed to be true combinations, essentially all components of the combination being functional and compatible with each other. Further provided are methods for producing a composition comprising at least two different proteinaceous molecules comprising paired variable regions, the at least two proteinaceous molecules having different binding specificities, comprising paired variable regions, at least two proteinaceous molecules having different binding specificities, comprising contacting at least three different variable regions under conditions allowing for pairing of variable regions and harvesting essentially all proteinaceous molecules having binding specificities resulting from the pairing.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Applicant: Merus B.V.
    Inventors: Hendricus Renerus Hoogenboom, Ton Logtenberg, Mark Throsby, Robert A. Kramer, Rui Daniel Pinto, Cornelis A. de Kruif, Erwin Houtzager
  • Publication number: 20140317766
    Abstract: Described are transgenic, non-human animals comprising a nucleic acid encoding an immunoglobulin light chain, whereby the immunoglobulin light chain is human, human-like, or humanized. The nucleic acid is provided with a means that renders it resistant to DNA rearrangements and/or somatic hypermutations. In one embodiment, the nucleic acid comprises an expression cassette for the expression of a desired molecule in cells during a certain stage of development in cells developing into mature B cells. Further provided is methods for producing an immunoglobulin from the transgenic, non-human animal.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 23, 2014
    Inventors: Ton LOGTENBERG, Mark THROSBY, Robert A. KRAMER, Rui Daniel PINTO, Cornelis A. DE KRUIF, Erwin HOUTZAGER
  • Publication number: 20140314755
    Abstract: Described are transgenic, non-human animals comprising a nucleic acid encoding an immunoglobulin light chain, whereby the immunoglobulin light chain is human, human-like, or humanized. The nucleic acid is provided with a means that renders it resistant to DNA rearrangements and/or somatic hypermutations. In one embodiment, the nucleic acid comprises an expression cassette for the expression of a desired molecule in cells during a certain stage of development in cells developing into mature B cells. Further provided is methods for producing an immunoglobulin from the transgenic, non-human animal.
    Type: Application
    Filed: April 30, 2014
    Publication date: October 23, 2014
    Inventors: Ton LOGTENBERG, Mark THROSBY, Robert A. KRAMER, Rui Daniel PINTO, Cornelis A. DE KRUIF, Erwin HOUTZAGER
  • Patent number: 8129178
    Abstract: The present invention relates to a bioreactor assembly containing a reactor frame that permits linear upscaling under identical conditions of culture volumes from two liters to thousands of liters. The bioreactor contains at least one rocking platforms being capable of holding at least one disposable bag adapted for receiving a total volume of at least 2 liters. The at least one platforms have a tray-like shape, that induces the fluid in the bag to move and form a wave-like motion. The at least one platforms are attached to the reactor frame and are positioned on top of each other along a vertical axis. In particular, the weight distribution of the rocking platforms is approximately in balance during rocking. The present invention further relates to methods using the bioreactor assembly.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: March 6, 2012
    Assignee: Millipore Corporation
    Inventors: Erwin Houtzager, Sander Huurman
  • Patent number: 7901919
    Abstract: The invention relates to the field of generating helper phages and phage display libraries for the identification of binding molecules. The invention provide chimaeric phages having a coat comprising a protein mixture. The protein mixture comprises a fusion protein having a proteinaceous molecule fused to a functional form of a phage coat protein and a mutant form of the phage coat protein, wherein the mutant form is impaired in binding to a host cell receptor. The invention further provides new phage collections, novel helper phages and methods and means for producing chimaeric phages, infectious phages and helper phages.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: March 8, 2011
    Assignee: Crucell Holland B.V.
    Inventors: Erwin Houtzager, Ton Logtenberg, Cornelis Adriaan De Kruif
  • Publication number: 20100146647
    Abstract: Described are transgenic, non-human animals comprising a nucleic acid encoding an immunoglobulin light chain, whereby the immunoglobulin light chain is human, human-like, or humanized. The nucleic acid is provided with a means that renders it resistant to DNA rearrangements and/or somatic hypermutations. In one embodiment, the nucleic acid comprises an expression cassette for the expression of a desired molecule in cells during a certain stage of development in cells developing into mature B cells. Further provided is methods for producing an immunoglobulin from the transgenic, non-human animal.
    Type: Application
    Filed: October 19, 2009
    Publication date: June 10, 2010
    Applicant: Merus B. V.
    Inventors: Ton Logtenberg, Mark Throsby, Robert A. Kramer, Rui Daniel Pinto, Cornelis A. de Kruif, Erwin Houtzager
  • Publication number: 20100069614
    Abstract: Described are transgenic, non-human animals comprising a nucleic acid encoding an immunoglobulin light chain, whereby the immunoglobulin light chain is human, human-like, or humanized. The nucleic acid is provided with a means that renders it resistant to DNA rearrangements and/or somatic hypermutations. In one embodiment, the nucleic acid comprises an expression cassette for the expression of a desired molecule in cells during a certain stage of development in cells developing into mature B cells. Further provided is methods for producing an immunoglobulin from the transgenic, non-human animal.
    Type: Application
    Filed: June 29, 2009
    Publication date: March 18, 2010
    Applicant: Merus B.V.
    Inventors: Erwin Houtzager, Rui Daniel Pinto, Ton Logtenberg, Mark Throsby
  • Publication number: 20090017521
    Abstract: The invention relates to the field of generating helper phages and phage display libraries for the identification of binding molecules. The invention provide chimaeric phages having a coat comprising a protein mixture. The protein mixture comprises a fusion protein having a proteinaceous molecule fused to a functional form of a phage coat protein and a mutant form of the phage coat protein, wherein the mutant form is impaired in binding to a host cell receptor. The invention further provides new phage collections, novel helper phages and methods and means for producing chimaeric phages, infectious phages and helper phages.
    Type: Application
    Filed: October 26, 2007
    Publication date: January 15, 2009
    Inventors: Erwin Houtzager, Ton Logtenberg, Cornelis Adriaan De Kruif
  • Patent number: 7329530
    Abstract: The invention relates to the field of generating helper phages and phage display libraries for the identification of binding molecules. The invention provide chimaeric phages having a coat comprising a protein mixture. The protein mixture comprises a fusion protein having a proteinaceous molecule fused to a functional form of a phage coat protein and a mutant form of the phage coat protein, wherein the mutant form is impaired in binding to a host cell receptor. The invention further provides new phage collections, novel helper phages and methods and means for producing chimaeric phages, infectious phages and helper phages.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 12, 2008
    Assignee: Crucell Holland B.V.
    Inventors: Erwin Houtzager, Ton Logtenberg, Cornelis Adriaan De Kruif
  • Publication number: 20070269888
    Abstract: The present invention relates to a bioreactor assembly comprising a reactor frame that permits linear upscaling under identical conditions of culture volumes from two liters to thousands of liters. The bioreactor comprises at least one rocking platforms being capable of holding at least one disposable bag adapted for receiving a total volume of at least 2 liters. Said at least one platforms have a tray-like shape, that induces the fluid in the bag to move and form a wave-like motion. Said at least one platforms are attached to the reactor frame and are positioned on top of each other along a vertical axis. In particular, the weight distribution of the rocking platforms is approximately in balance during rocking. The present invention further relates to methods using the bioreactor assembly.
    Type: Application
    Filed: July 1, 2005
    Publication date: November 22, 2007
    Inventors: Erwin Houtzager, Sander Huurman
  • Publication number: 20060292634
    Abstract: Means and methods for generating binding peptide associated with a suitable core region are disclosed, the resulting proteinaceous molecule and uses thereof. A solution to the problems associated with the use of binding molecules over their entire range of use. Binding molecules can be designed to accommodate extreme conditions of use such as extreme temperatures or pH. Alternatively, binding molecules can be designed to respond to very subtle changes in the environment.
    Type: Application
    Filed: May 19, 2006
    Publication date: December 28, 2006
    Applicant: CatchMabs B.V.
    Inventors: Erwin Houtzager, Irma Vijn, Peter Sijmons
  • Publication number: 20060177437
    Abstract: Described are means and methods for generating binding peptide associated with a suitable core region, the resulting proteinaceous molecule and uses thereof. The invention provides a solution to the problems associated with the use of binding molecules over their entire range of use. Binding molecules can be designed to accommodate extreme conditions of use, such as extreme temperatures or pH. Alternatively, binding molecules can be designed to respond to very subtle changes in the environment.
    Type: Application
    Filed: December 9, 2005
    Publication date: August 10, 2006
    Applicant: CatchMabs B.V.
    Inventors: Erwin Houtzager, Wietse Willebrands, Guy de Roo, KeesJan Francoijs, Irma Vijn
  • Patent number: 7070926
    Abstract: A chimeric phage having a coat comprising a mixture of proteins. The mixture of proteins includes a fusion protein wherein a protein is fused to a functional form of a phage coat protein, and a mutant form of the phage coat protein characterized in that a phage having no wild type phage coat protein from which the mutant form is derived but having a coat comprising the mutant form and no copies of the functional form is less infectious than a phage comprising no wild type phage coat protein from which the mutant form is derived and having a coat comprising the mutant form and at least one copy of the functional form. Also, the associated phage collection comprising the chimaeric phage or an infectious phage containing at least one copy of a mutant form of a phage coat protein wherein the mutant form has lost the ability to mediate infection of a natural host by the infectious phage. Also a method for producing a phage particle.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: July 4, 2006
    Assignee: Crucell Holland B.V.
    Inventors: Erwin Houtzager, Ton Logtenberg, Cornelis A. de Kruif
  • Publication number: 20060140889
    Abstract: Provided are means and methods for applying a cosmetic substance to a desired target. The method comprises providing a conjugate of a proteinaceous substance having a specific affinity for the target molecule linked to a cosmetic substance, whereby the resulting connection between the cosmetic substance and the target molecule can be disrupted upon the presence of a chemical and/or physical signal.
    Type: Application
    Filed: June 10, 2005
    Publication date: June 29, 2006
    Applicant: L-MAbs B.V.
    Inventors: Erwin Houtzager, Irma Vijn, Peter Sijmons, Grant Mudge, Addi Fadel
  • Publication number: 20050037427
    Abstract: Provided are means and methods for generating binding peptide associated with a suitable core region, the resulting proteinaceous molecule and uses thereof. The invention provides a solution to the problems associated with the use of binding molecules over their entire range of use. Binding molecules can be designed to accommodate extreme conditions of use such as extreme temperatures or pH. Alternatively, binding molecules can be designed to respond to very subtle changes in the environment.
    Type: Application
    Filed: December 10, 2003
    Publication date: February 17, 2005
    Inventors: Erwin Houtzager, Irma Vijn, Cornelis Francoijs, Peter Sijmons
  • Publication number: 20050014261
    Abstract: The invention relates to the field of generating helper phages and phage display libraries for the identification of binding molecules. The invention provide chimaeric phages having a coat comprising a protein mixture. The protein mixture comprises a fusion protein having a proteinaceous molecule fused to a functional form of a phage coat protein and a mutant form of the phage coat protein, wherein the mutant form is impaired in binding to a host cell receptor. The invention further provides new phage collections, novel helper phages and methods and means for producing chimaeric phages, infectious phages and helper phages.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 20, 2005
    Inventors: Erwin Houtzager, Ton Logtenberg, Cornelis De Kruif
  • Publication number: 20030219829
    Abstract: The invention provides libraries comprising binding molecules adapted to expression in an expression organism, but also transferable to a human context without undergoing a change in conformation and/or build up. A method for producing a human monoclonal antibody includes: providing a library of binding molecules, the binding domain of which consists essentially of human heavy chain variable fragments in a functional format, selecting from the library at least one heavy chain variable fragment having a desired binding affinity, and inserting a nucleic acid encoding the heavy chain variable fragment into a nucleic acid encoding the complementary part of at least a heavy chain of the human monoclonal antibody, allowing for expression of the resulting heavy chain and for assembly of the heavy chain with a desired light chain, and producing a human monoclonal antibody.
    Type: Application
    Filed: March 5, 2003
    Publication date: November 27, 2003
    Inventors: Ton Logtenberg, Erwin Houtzager
  • Publication number: 20030215914
    Abstract: Means and methods for generating binding peptide associated with a suitable core region are disclosed, the resulting proteinaceous molecule and uses thereof. A solution to the problems associated with the use of binding molecules over their entire range of use. Binding molecules can be designed to accommodate extreme conditions of use such as extreme temperatures or pH. Alternatively, binding molecules can be designed to respond to very subtle changes in the environment.
    Type: Application
    Filed: December 10, 2002
    Publication date: November 20, 2003
    Inventors: Erwin Houtzager, Irma Maria Caecilia Vijn, Peter Christiaan Sijmons
  • Publication number: 20030108985
    Abstract: Proteinaceous molecules involved in molecular binding are disclosed. The binding molecules have a common structural core element that is provided with a desired affinity region. The core element and the desired affinity region can be adapted to bind to a wide range of molecules for a desired purpose. A method for identifying a binding molecule with an altered binding property and producing a nucleic acid for the identified binding molecule are also disclosed.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 12, 2003
    Inventors: Erwin Houtzager, Irma Maria Caecilia Vijn, Peter Christiaan Sijmons
  • Publication number: 20030054495
    Abstract: A chimeric phage having a coat comprising a mixture of proteins. The mixture of proteins includes a fusion protein wherein a protein is fused to a functional form of a phage coat protein, and a mutant form of the phage coat protein characterized in that a phage having no wild type phage coat protein from which the mutant form is derived but having a coat comprising the mutant form and no copies of the functional form is less infectious than a phage comprising no wild type phage coat protein from which the mutant form is derived and having a coat comprising the mutant form and at least one copy of the functional form. Also, the associated phage collection comprising the chimaeric phage or an infectious phage containing at least one copy of a mutant form of a phage coat protein wherein the mutant form has lost the ability to mediate infection of a natural host by the infectious phage. Also a method for producing a phage particle.
    Type: Application
    Filed: June 15, 2001
    Publication date: March 20, 2003
    Inventors: Erwin Houtzager, Ton Logtenberg, Cornelis Adriaan de Kruif