Patents by Inventor Klaus Bosslet

Klaus Bosslet 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: 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
  • Publication number: 20050234247
    Abstract: Conjugates of epothilones and epothilone derivatives (as effectors) with suitable biomolecules (as recognition units) are described. Their production is carried out by the effectors being reacted with suitable linkers, and the compounds that are produced are conjugated to the recognition units. The pharmaceutical use of conjugates for treating proliferative or angiogenesis-associated processes is described.
    Type: Application
    Filed: January 31, 2005
    Publication date: October 20, 2005
    Inventors: Ulrich Klar, Joerg Willuda, Andreas Menrad, Klaus Bosslet
  • 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
  • Publication number: 20050100984
    Abstract: The invention relates to the cytoplasmic expression of antibodies, antibody fragments and antibody fragment fusion molecules in E. coli. In particular, antibody fragment fusion molecules having an antibody moiety which is directed against tumors and an enzyme moiety which cleaves a nontoxic prodrug to give the toxic drug can be advantageously prepared in this way while retaining their respective functional properties.
    Type: Application
    Filed: August 4, 2003
    Publication date: May 12, 2005
    Inventors: Martin Opper, Klaus Bosslet, Joerg Clech
  • Publication number: 20050026971
    Abstract: Conjugates of epothilones and epothilone derivatives (as effectors) with suitable biomolecules (as recognition units) are described. Their production is carried out by the effectors being reacted with suitable linkers, and the compounds that are produced are conjugated to the recognition units. The pharmaceutical use of the conjugates for treating proliferative or angiogenesis-associated processes is described.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Applicant: Schering AG
    Inventors: Markus Berger, Gerhard Siemeister, Ulrich Klar, Jorg Willuda, Andreas Menrad, Klaus Bosslet
  • Publication number: 20040214756
    Abstract: The invention relates to a two-component system for the treatment and prophylaxis of sepsis and of septic shock, where the components are intended to act in combination with each other, to a pharmaceutical and a packaging unit containing both the components, and to a process for their preparation.
    Type: Application
    Filed: January 29, 1997
    Publication date: October 28, 2004
    Applicant: AVENTIS BEHRING GmbH
    Inventors: GERHARD DICKNEITE, KLAUS BOSSLET
  • Publication number: 20040202646
    Abstract: Provided herein are carbohydrate complement-modified bifunctional glycoproteins, and their use in tumor-selective therapy. The bifunctional glycoproteins comprise a first component that specifically binds to a tumor-specific antigen and a second component having enzymatic activity by means of which a non-toxic prodrug is cleaved into a cytotoxic drug. The carbohydrate complement comprises at least one exposed carbohydrate residue selected from the group consisting of mannose, galactose, N-acetylglucosamine, N-acetyllactose, glucose and fucose. The modified carbohydrate complement contributes to increased relative concentration of the glycoproteins at the site of the tumor, and enhanced clearance from the general circulation and non-tumor sites.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 14, 2004
    Applicant: Behringwerke Aktiengesellschaft
    Inventors: Klaus Bosslet, Joerg Czech, Dieter Hoffmann
  • Publication number: 20040167083
    Abstract: Conjugates of epothilones and epothilone derivatives (as effectors) with suitable saccharides or saccharide derivatives (as recognition units) are described. Their production is carried out by the recognition units being reacted with suitable linkers, and the compounds that are produced are conjugated to the effectors. The pharmaceutical use of the conjugates for treating proliferative or angiogenesis-associated processes is described.
    Type: Application
    Filed: December 5, 2003
    Publication date: August 26, 2004
    Inventors: Klaus Bosslet, Holger Hess-Stumpp, Jens Hoffmann, Ulrich Klar, Andrea Rotgeri
  • Publication number: 20040091488
    Abstract: Antigenic constructs which result from linkage of major histocompatibility complex (MHC) class I antigens with specific carrier molecules are described. The linkage is effected N- or C-terminally by covalent bonding or, in the case of non-covalent bonding, for example by an avidin/biotin bridge.
    Type: Application
    Filed: April 14, 2003
    Publication date: May 13, 2004
    Applicant: Dr. Klaus Bosslet
    Inventors: Gerhard Seeman, Klaus Bosslet, Hans Harald Sedlacek
  • 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
  • Patent number: 6602688
    Abstract: The invention relates to the cytoplasmic expression of antibodies, antibody fragments and antibody fragment fusion molecules in E. coli. In particular, antibody fragment fusion molecules having an antibody moiety which is directed against tumors and an enzyme moiety which cleaves a nontoxic prodrug to give the toxic drug can be advantageously prepared in this way while retaining their respective functional properties.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: August 5, 2003
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Martin Opper, Klaus Bosslet, Joerg Czech
  • Patent number: 6548067
    Abstract: Antigenic constructs which result from linkage of major histocompatibility complex (MHC) class I antigens with specific carrier molecules are described. The linkage is effected N- or C-terminally by covalent bonding or, for example, in the case of non-covalent bonding by an avidin/biotin bridge. The specific carrier molecules bind selectively to target cells and are preferably monoclonal antibodies. Processes of genetic manipulation for the preparation of such constructs are indicated. Antigenic constructs according to the invention are used to damage or eliminate target cells.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: April 15, 2003
    Inventors: Gerhard Seeman, Klaus Bosslet, Hans Harald Sedlacek
  • 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: 6294172
    Abstract: Monoclonal antibodies with specificity for membrane-associated antigens and methods of using them in detection of tumor-associated antigens arc described.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: September 25, 2001
    Assignee: Dade Behring Marburg GmbH
    Inventors: Klaus Bosslet, Roland Kurrle, Hans Harald Sedlacek, Ernst-Jurgen Kanzy, Takako Katoh, Hans Ulrich Schorlemmer, Gerhard Luben
  • Patent number: 6241961
    Abstract: The invention relates to a type of radioimmuno-conjugates where the &agr;-radiators or the &bgr;-radiators are stably coupled to the antibody with or without the use of a complex-forming agent and wherein the radioisotope is not iodine and wherein the &bgr;-radiators are Yttrium-90, Rhenium-188, Rhenium-186, Copper-67, Holmium-166 and Samarium-153 and the &agr;-radiators are Astatine-211 or Bismuth-212 and wherein the MAb-moiety of the conjugate is derived either from the mouse, a human or other mammal and which can be either intact, fragmented, humanized or recombinantly manipulated. Furthermore, the invention relates to radioimmuno-conjugates where the MAb binds onto an extracellular antigen, which preferentially appears on cells of the haematopoietic system or where the MAb binds to an antigen at the surface of granulocytes or granulocyte-precursors, or both of these cell types, or were the MAb moiety of the conjugate binds onto an epitope or epitopes of CD 66, respectively CD 66 a, b, c and e.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: June 5, 2001
    Inventors: Ivan Friedrich Benes, Klaus Bosslet
  • Patent number: RE37596
    Abstract: The invention relates to monoclonal antibodies (MAbs) and fragments thereof which bind to defined tumor-associated antigens, principally of small cell lung carcinoma (SCLC), of melanoma, of neuroblastoma and other tumors of neuroectodermal origin, to hybridoma cell lines for the preparation thereof, and to the antigens which can be defined and/or isolated with the aid of these antibodies or antibody fragments. The antibodies, antibody fragments and antigens can be used as diagnostic, aid, active substance or active substance carrier.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: March 19, 2002
    Assignee: Dade Behring Marburg GmbH
    Inventors: Klaus Bosslet, Bernhard Auerbach, Helmut Peters