Patents by Inventor Gerhard Seemann

Gerhard Seemann 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).

  • Patent number: 7662383
    Abstract: The invention relates to murine monoclonal antibodies (MAbs), A, B, C and D, which are directed against tumor-associated antigens. The nearly complete nucleotide sequences of the V genes of these MAbs are described, so that the relevant variable domains can be put together to give chimeric MAbs, or “humanized” MAbs are obtained by inserting the hypervariable regions (complementarity determining regions=CDR) into a human MAb framework. Antibody constructs of this type can be employed in human therapy and in vivo diagnosis without the disadvantages observed with murine MAbs.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: February 16, 2010
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Klaus Bosslet, Gerhard Seemann, Hans Harald Sedlacek, Bernhard Auerbach
  • Publication number: 20090246132
    Abstract: The invention relates to murine monoclonal antibodies (MAbs), A, B, C and D, which are directed against tumor-associated antigens. The nearly complete nucleotide sequences of the V genes of these MAbs are described, so that the relevant variable domains can be put together to give chimeric MAbs, or “humanized” MAbs are obtained by inserting the hypervariable regions (complementarity determining regions=CDR) into a human MAb framework. Antibody constructs of this type can be employed in human therapy and in vivo diagnosis without the disadvantages observed with murine MAbs.
    Type: Application
    Filed: February 7, 2008
    Publication date: October 1, 2009
    Inventors: Klaus Bosslet, Gerhard Seemann, Hans Harald Sedlacek, Bernhard Auerbach
  • Patent number: 7241595
    Abstract: The present invention relates to glycosyl-etoposide prodrugs, a process for the preparation thereof and the use thereof in combination with functionalized tumor-specific enzyme conjugates for treating cancers.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: July 10, 2007
    Assignee: sanofi-aventis Pharma Deutschland GmbH
    Inventors: Cenek Kolar, Jörg Czech, Klaus Bosslet, Gerhard Seemann, Hans-Harald Sedlacek
  • Publication number: 20060292139
    Abstract: The invention relates to compounds which contain an antigen binding region which is bound to at least one enzyme which is able to metabolize a compound (prodrug) which has little or no cytotoxicity to a cytotoxic compound (drug), where the antigen binding region is composed of a single polypeptide chain. It is advantageous for covalently bonded carbohydrates to be present on the polypeptide chain.
    Type: Application
    Filed: May 23, 2005
    Publication date: December 28, 2006
    Applicant: Aventis Pharma Deutschland
    Inventors: Mathias Gehrmann, Gerhard Seemann, Klaus Bosslet, Jorg Czech
  • Publication number: 20060159682
    Abstract: The invention relates to murine monoclonal antibodies (MAbs), A, B, C and D, which are directed against tumor-associated antigens. The nearly complete nucleotide sequences of the V genes of these MAbs are described, so that the relevant variable domains can be put together to give chimeric MAbs, or “humanized” MAbs are obtained by inserting the hypervariable regions (complementarity determining regions ?CDR) into a human MAb framework. Antibody constructs of this type can be employed in human therapy and in vivo diagnosis without the disadvantages observed with murine MAbs.
    Type: Application
    Filed: September 17, 2004
    Publication date: July 20, 2006
    Inventors: Klaus Bosslet, Gerhard Seemann, Hans Sedlacek, Bernhard Auerbach
  • Patent number: 7060495
    Abstract: The invention relates to compounds which contain an antigen binding region which is bound to at least one enzyme which is able to metabolize a compound (prodrug) which has little or no cytotoxicity to a cytotoxic compound (drug), where the antigen binding region is composed of a single polypeptide chain. It is advantageous for covalently bonded carbohydrates to be present on the polypeptide chain.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: June 13, 2006
    Assignee: Behrinwerke Aktienegesellschaft
    Inventors: Mathias Gehrmann, Gerhard Seemann, Klaus Bosslet, Jörg Czech
  • Patent number: 6926896
    Abstract: The invention relates to murine monoclonal antibodies (MAbs), A, B, C and D, which are directed against tumor-associated antigens. The nearly complete nucleotide sequences of the V genes of these MAbs are described, so that the relevant variable domains can be put together to give chimeric MAbs, or “humanized” MAbs are obtained by inserting the hypervariable regions (complementarity determining regions=CDR) into a human MAb framework. Antibody constructs of this type can be employed in human therapy and in vivo diagnosis without the disadvantages observed with murine MAbs.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: August 9, 2005
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Klaus Bosslet, Gerhard Seemann, Hans Harald Sedlacek, Bernhard Auerbach
  • Patent number: 6610299
    Abstract: The present invention relates to glycosyl-etoposide prodrugs, a process for the preparation thereof and the use thereof in combination with functionalized tumor-specific enzyme conjugates for treating cancers.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: August 26, 2003
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Cenek Kolar, Jörg Czech, Klaus Bosslet, Gerhard Seemann, Hans-Harald Sedlacek, Dieter Hoffmann
  • Publication number: 20030082151
    Abstract: The invention relates to the use of one or more immunosuppressants for the production of a pharmaceutical for increasing the tolerance of a mammal to transgenic cells, and to a process for identifying immunosuppressants suitable for this. By the use of pharmaceuticals of this type, the production of the transgenic expression product is markedly prolonged even after discontinuing the immunosuppressant treatment.
    Type: Application
    Filed: September 20, 1999
    Publication date: May 1, 2003
    Inventors: GERHARD SEEMANN, GUNTER CICHON
  • Publication number: 20030064482
    Abstract: The present invention relates to glycosyl-etoposide prodrugs, a process for the preparation thereof and the use thereof in combination with functionalized tumor-specific enzyme conjugates for treating cancers.
    Type: Application
    Filed: April 24, 2002
    Publication date: April 3, 2003
    Applicant: Hoechst Aktiengesellschaft
    Inventors: Cenek Kolar, Jorg Czech, Klaus Bosslet, Gerhard Seemann, Hans-Harald Sedlacek, Dieter Hoffman
  • Patent number: 6475486
    Abstract: The present invention relates to glycosyl-etoposide prodrugs, a process for the preparation thereof and the use thereof in combination with functionalized tumor-specific enzyme conjugates for treating cancers.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: November 5, 2002
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Cenek Kolar, Jörg Czech, Klaus Bosslet, Gerhard Seemann, Hans-Harald Sedlacek, Dieter Hoffman
  • Publication number: 20020068056
    Abstract: The invention relates to murine monoclonal antibodies (MAbs), A, B, C and D, which are directed against tumor-associated antigens. The nearly complete nucleotide sequences of the V genes of these MAbs are described, so that the relevant variable domains can be put together to give chimeric MAbs, or “humanized” MAbs are obtained by inserting the hypervariable regions (complementarity determining regions=CDR) into a human MAb framework. Antibody constructs of this type can be employed in human therapy and in vivo diagnosis without the disadvantages observed with murine MAbs.
    Type: Application
    Filed: December 13, 1994
    Publication date: June 6, 2002
    Inventors: KLAUS BOSSLET, GERHARD SEEMANN, HANS H. SEDLACEK, BERNHARD AUERBACH
  • Publication number: 20020068329
    Abstract: The invention relates to compounds which contain an antigen binding region which is bound to at least one enzyme which is able to metabolize a compound (prodrug) which has little or no cytotoxicity to a cytotoxic compound (drug), where the antigen binding region is composed of a single polypeptide chain. It is advantageous for covalently bonded carbohydrates to be present on the polypeptide chain.
    Type: Application
    Filed: December 12, 1997
    Publication date: June 6, 2002
    Applicant: Behringwerke Aktiengesellschaft
    Inventors: MATHIAS GEHRMANN, GERHARD SEEMANN, KLAUS BOSSLET, JORG CZECH
  • Patent number: 6030797
    Abstract: The invention relates to monoclonal antibodies against a tumor-associated antigen which is mainly derived from tumors from the group of carcinomas of the breast, ovaries and prostate, as well as adenocarcinomas of the lung, which additionally react with polymorphic epithelial mucin (PEM), to the preparation and use thereof and to the use of the epitope defined by the antibody for diagnosis and therapy.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: February 29, 2000
    Assignee: Dade Behring Marburg GmbH
    Inventors: Klaus Bosslet, Peter Pfleiderer, Gerhard Seemann
  • Patent number: 5959083
    Abstract: The invention relates to bispecific tetravalent receptors of the formula I ##STR1## or formula II ##STR2## against a tumor-associated antigen and against an agent active against tumors.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: September 28, 1999
    Assignee: Behringwerke Aktiengellschaft
    Inventors: Klaus Bosslet, Gerhard Seemann
  • Patent number: 5908790
    Abstract: The invention relates to monoclonal antibodies (mAB) which bind to water-soluble complexones such as ethylenediamine tetraacetate (EDTA) or diethylenetriamine pentaacetate (DTPA) with high specificity and avidity and retain their high avidity and specificity for these complexones after complexing of EDTA or DTPA with metal ions. These mAB can therefore be used, e.g. coupled on filters or other supports, for removing toxic heavy metals which are complexed with EDTA or DTPA. Furthermore, these mAB are suitable as components of immunoassays (RIA, ELISA etc.) for the quantitative determination of EDTA or DTPA in aqueous solutions.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 1, 1999
    Assignee: Behring Diagnostics GmbH
    Inventors: Klaus Bosslet, Peter Hermentin, Gerhard Seemann
  • Patent number: 5907034
    Abstract: The invention relates to monoclonal antibodies (mAB) which bind to water-soluble complexones such as ethylenediamine tetraacetate (EDTA) or diethylenetriamine pentaacetate (DTPA) with high specificity and avidity and retain their high avidity and specificity for these complexones after complexing of EDTA or DTPA with metal ions. These mAB can therefore be used, e.g. coupled on filters or other supports, for removing toxic heavy metals which are complexed with EDTA or DTPA. Furthermore, these mAB are suitable as components of immunoassays (RIA, ELISA etc.) for the quantitative determination of EDTA or DTPA in aqueous solutions.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: May 25, 1999
    Assignee: Behring Diagnostics GmbH
    Inventors: Klaus Bosslet, Peter Hermentin, Gerhard Seemann
  • Patent number: 5837824
    Abstract: The invention relates to the epitope which binds monoclonal antibody BW 835, DSM ACC 2022, and the use of the epitope for diagnosis and therapy.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 17, 1998
    Assignee: Behring Diagnostics GmbH
    Inventors: Klaus Bosslet, Peter Pfleiderer, Gerhard Seemann
  • Patent number: 5730981
    Abstract: The invention relates to monoclonal antibodies of high avidity, which react specifically with the gangliosides GD3 and GQ1b, and to their use for detecting melanomas and other tumors or tissues expressing GD3 and GQ1b.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: March 24, 1998
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Klaus Bosslet, Gerhard Seemann, Wolfgang Dippold
  • Patent number: 5695758
    Abstract: The invention relates to monoclonal antibodies against a tumor-associated antigen which is mainly derived from tumors from the group of carcinomas of the breast, ovaries and prostate, as well as adenocarcinomas of the lung, which additionally react with polymorphic epithelial mucin (PEM), to the preparation and use thereof and to the use of the epitope defined by the antibody for diagnosis and therapy.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 9, 1997
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Klaus Bosslet, Peter Pfleiderer, Gerhard Seemann