Patents Assigned to Leuven Research & Development VZW
  • Patent number: 7604952
    Abstract: A method having clinically sufficient degree of diagnostic accuracy for detecting the presence of coronary artery disease in a human patient from the general population and for distinguishing between the stages of the disease in that patient is disclosed. The stages are, first, the non-acute stage, which is either asymptomatic coronary artery disease or stable angina, second, the acute stage known as unstable angina, and, third, the acute stage known as acute myocardial infarction. The diseased state (as opposed to the non-diseased state) is indicated by the clinically significant presence of a first marker in a sample from the patient. The presence of one of the two acute stages, unstable angina or acute myocardial infarction, is indicated by the clinically significant presence of a second marker in a sample from the patient. The presence of the more severe acute stage known as acute myocardial infarction is indicated by the clinically significant presence of a third marker in a sample from the patient.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: October 20, 2009
    Assignee: Leuven Research & Development VZW
    Inventors: Paul N. Holvoet, Désiré J. Collen
  • Patent number: 7390627
    Abstract: Immunoassays for malondialdehyde-modified low density lipoprotein (MDA-modified LDL) and oxidized low density lipoprotein (OxLDL), monoclonal antibodies (and the cell lines for them) for use in the assays, and a storage-stable standard (which may be used as a calibrator and/or control) are disclosed. MDA-modified LDL and OxLDL are implicated in atherosclerosis and its etiology.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: June 24, 2008
    Assignee: Leuven Research & Development VZW
    Inventors: Paul Noel Holvoet, Désiré José Collen
  • Patent number: 7378250
    Abstract: Immunoassays for malondialdehyde-modified low density lipoprotein (MDA-modified LDL) and oxidized low density lipoprotein (OxLDL), monoclonal antibodies (and the cell lines for them) for use in the assays, and a storage-stable standard (which may be used as a calibrator and/or control) are disclosed. MDA-modified LDL and OxLDL are implicated in atherosclerosis and its etiology.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: May 27, 2008
    Assignee: Leuven Research & Development VZW
    Inventors: Paul Noel Holvoet, Desire Jose Collen
  • Patent number: 7229775
    Abstract: Immunoassays for malondialdehyde-modified low density lipoprotein (MDA-modified LDL) and oxidized low density lipoprotein (OxLDL), monoclonal antibodies (and the cell lines for them) for use in the assays, and a storage-stable standard (which may be used as a calibrator and/or control) are disclosed. MDA-modified LDL and OxLDL are implicated in atherosclerosis and its etiology.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: June 12, 2007
    Assignee: Leuven Research & Development VZW
    Inventors: Paul Noel Holvoet, Désiré José Collen
  • Patent number: 7229776
    Abstract: Immunoassays for malondialdehyde-modified low density lipoprotein (MDA-modified LDL) and oxidized low density lipoprotein (OxLDL), monoclonal antibodies (and the cell lines for them) for use in the assays, and a storage-stable standard (which may be used as a calibrator and/or control) are disclosed. MDA-modified LDL and OxLDL are implicated in atherosclerosis and its etiology.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: June 12, 2007
    Assignee: Leuven Research & Development VZW
    Inventors: Paul Noel Holvoet, Désiré José Collen
  • Patent number: 7166469
    Abstract: A method having clinically sufficient degree of diagnostic accuracy for detecting the presence of coronary artery disease in a human patient from the general population and for distinguishing between the stages of the disease in that patient is disclosed. The stages are, first, the non-acute stage, which is either asymptomatic coronary artery disease or stable angina, second, the acute stage known as unstable angina, and, third, the acute stage known as acute myocardial infarction. The diseased state (as opposed to the non-diseased state) is indicated by the clinically significant presence of a first marker in a sample from the patient. The presence of one of the two acute stages, unstable angina or acute myocardial infarction, is indicated by the clinically significant presence of a second marker in a sample from the patient. The presence of the more severe acute stage known as acute myocardial infarction is indicated by the clinically significant presence of a third marker in a sample from the patient.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: January 23, 2007
    Assignee: Leuven Research & Development VZW
    Inventors: Paul N. Holvoet, Désiré J. Collen
  • Patent number: 6902733
    Abstract: Methods for the identification, production and use of staphylokinase derivatives characterized by a reduced immunogenicity after administration in patients. The derivatives of the invention are obtained by preparing a DNA fragment comprising at least the part of the coding sequence of staphylokinase that provides for its biological activity; performing in vitro site-directed mutagenesis on the DNA fragment to replace one or more codons for wild-type amino acids by a codon for another amino acid; cloning the mutated DNA fragment in a suitable vector; transforming or transfecting a suitable host cell with the vector; culturing the host cell under conditions suitable for expressing the DNA fragment; and purifying the expressed staphylokinase derivative to homogeneity. Preferably the DNA fragment is a 453 bp EcoRI-HindIII fragment of the plasmid pMEX602sakB, (pMEX.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: June 7, 2005
    Assignees: Desire′ Jose′ Collen, Leuven Research & Development VZW
    Inventor: Désire José Collen
  • Publication number: 20040175759
    Abstract: Immunoassays for malondialdehyde-modified low density lipoprotein (MDA-modified LDL) and oxidized low density lipoprotein (OxLDL), monoclonal antibodies (and the cell lines for them) for use in the assays, and a storage-stable standard (which may be used as a calibrator and/or control) are disclosed. MDA-modified LDL and OxLDL are implicated in atherosclerosis and its etiology.
    Type: Application
    Filed: March 17, 2004
    Publication date: September 9, 2004
    Applicant: Leuven Research & Development VZW
    Inventors: Paul Noel Holvoet, Desire Jose Collen
  • Patent number: 6727102
    Abstract: Immunoassays for malondialdehyde-modified low density lipprotein (MDA-modified LDL) and oxidized low density lipprotein (OxLDL), monoclonal antibodies (and the cell lines for them) for use in the assays, and a storage-stable standard (which may be used as a calibrator and/or control) are disclosed. MDA-modified LDL and OxLDL are implicated in atherosclerosis and its etiology.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: April 27, 2004
    Assignee: Leuven Research & Development VZW
    Inventors: Paul Noel Holvoet, Désiré José Collen
  • Patent number: 6602509
    Abstract: The present invention is related to a compound for the prevention and/or the treatment of allergy consisting of: at least one allergen antigenic determinant which is recognized by a B cell or an antibody secreted by a B cell of a non-atopic individual to said allergen, and at least one antigenic determinant of an antigen different from said allergen which triggers T cell activation.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: August 5, 2003
    Assignee: Leuven Research & Development VZW
    Inventors: Jean-Marie Saint-Remy, Marc Jacquemin
  • Publication number: 20030013127
    Abstract: A method having clinically sufficient degree of diagnostic accuracy for detecting the presence of coronary artery disease in a human patient from the general population and for distinguishing between the stages of the disease in that patient is disclosed. The stages are, first, the non-acute stage, which is either asymptomatic coronary artery disease or stable angina, second, the acute stage known as unstable angina, and, third, the acute stage known as acute myocardial infarction. The diseased state (as opposed to the non-diseased state) is indicated by the clinically significant presence of a first marker in a sample from the patient. The presence of one of the two acute stages, unstable angina or acute myocardial infarction, is indicated by the clinically significant presence of a second marker in a sample from the patient. The presence of the more severe acute stage known as acute myocardial infarction is indicated by the clinically significant presence of a third marker in a sample from the patient.
    Type: Application
    Filed: June 18, 2002
    Publication date: January 16, 2003
    Applicant: LEUVEN RESEARCH & DEVELOPMENT VZW
    Inventors: Paul N. Holvoet, Desire J. Collen
  • Patent number: 6398757
    Abstract: A catheter containing an inflatable balloon, which is at its periphery provided with hollow extensions that communicate between the outside of the balloon and the lumen of the catheter for use in the gene therapeutic treatment of local disorders by transfer of a desired gene to a target cell or tissue being part of or being located in the vicinity of a blood vessel. The catheter is preferably the Infiltrator® catheter.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: June 4, 2002
    Assignees: Leuven Research & Development VZW, Vlaams Interuniversitair Instituut voor Biotechnologie
    Inventors: Olivier Henry Varenne, Désiré José Collen, Stefan Pierre Janssens
  • Publication number: 20010049112
    Abstract: A method having clinically sufficient degree of diagnostic accuracy for detecting the presence of coronary artery disease in a human patient from the general population and for distinguishing between the stages of the disease in that patient is disclosed. The stages are, first, the non-acute stage, which is either asymptomatic coronary artery disease or stable angina, second, the acute stage known as unstable angina, and, third, the acute stage known as acute myocardial infarction. The diseased state (as opposed to the non-diseased state) is indicated by the clinically significant presence of a first marker in a sample from the patient. The presence of one of the two acute stages, unstable angina or acute myocardial infarction, is indicated by the clinically significant presence of a second marker in a sample from the patient. The presence of the more severe acute stage known as acute myocardial infarction is indicated by the clinically significant presence of a third marker in a sample from the patient.
    Type: Application
    Filed: July 16, 2001
    Publication date: December 6, 2001
    Applicant: Leuven Research & Development VZW
    Inventors: Paul N. Holvoet, Desire J. Collen
  • Patent number: 6309888
    Abstract: A method having clinically sufficient degree of diagnostic accuracy for detecting the presence of coronary artery disease in a human patient from the general population and for distinguishing between the stages of the disease in that patient is disclosed. The stages are, first, the non-acute stage, which is either asymptomatic coronary artery disease or stable angina, second, the acute stage known as unstable angina, and, third, the acute stage known as acute myocardial infarction. The diseased state (as opposed to the non-diseased state) is indicated by the clinically significant presence of a first marker in a sample from the patient. The presence of one of the two acute stages, unstable angina or acute myocardial infarction, is indicated by the clinically significant presence of a second marker in a sample from the patient. The presence of the more severe acute stage known as acute myocardial infarction is indicated by the clinically significant presence of a third marker in a sample from the patient.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: October 30, 2001
    Assignee: Leuven Research & Development VZW
    Inventors: Paul N. Holvoet, Désiré J. Collen
  • Patent number: 5951980
    Abstract: Methods for the identification, production and use of derivatives of the invention obtained by preparing a DNA fragment comprising at least the part of the coding sequence of staphylokinase that provides for its biological activity; performing in vitro site-directed mutagenesis on the DNA fragment to replace one or more codons for wild-type amino acids by a codon for another amino acid; cloning the mutated DNA fragment in a suitable vector; transforming or transfecting a suitable host cell with the vector; and culturing the host cell under conditions suitable for expressing the DNA fragment. Preferably the DNA fragment is a 453 bp EcoRI-HindIII fragment of the plasmid pMEX602sakB, the in vitro site-directed mutagenesis is performed by spliced overlap extension polymerase chain reaction and the mutated DNA fragment is expressed in E. coli strain TG1 or WK6.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: September 14, 1999
    Assignees: Leuven Research & Development VZW, Desire Jose Collen
    Inventor: Desire Jose Collen
  • Patent number: 5695754
    Abstract: A method for producing the derivatives of the invention by preparing a DNA fragment comprising at least the part of the coding sequence of staphylokinase that provides for its biological activity; performing in vitro site-directed mutagenesis on the DNA fragment to replace one or more codons for wild-type amino acids by a codon for another amino acid; cloning the mutated DNA fragment in a suitable vector; transforming or transfecting a suitable host cell with the vector; and culturing the host cell under conditions suitable for expressing the DNA fragment. Preferably the DNA fragment is a 466 bp EcoRI-HINDIII fragment of the plasmid pMEX602SAK, the in vitro site-directed mutagenesis is performed by an oligonucleotide-directed mutagenesis system using the plasmid pMa/c and the repair deficient E. coli strain WK6MutS, and the mutated DNA fragment is cloned in E. coli strain-WK6.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: December 9, 1997
    Assignees: Leuven Research & Development VZW, Desire Collen
    Inventor: Desire Collen
  • Patent number: 5174994
    Abstract: Plasminogen activators of the tissue-type and plasminogen activators of the urokinase-type appear to have a synergistic action in vivo when administered together as thrombolytic agents. Use in pharmaceutical compositions and in methods for the preparation and use thereof are set forth.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: December 29, 1992
    Assignee: Leuven Research & Development VZW
    Inventor: Desire J. Collen
  • Patent number: 4752603
    Abstract: A new plasminogen activator which is very similar to the plasminogen activator from blood can be isolated in good amounts from the culture fluid of human melanoma cells.This new plasminogen activator has a strong thrombolytic effect and pharmaceutical compositions thereof may be used in the therapeutic treatment of thrombosis disorders.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: June 21, 1988
    Assignee: Leuven Research and Development VZW
    Inventors: Desire J. Collen, Dingeman C. Rijken, Osamu Matsuo
  • Patent number: 4285739
    Abstract: Solid bodies of copper-zinc-aluminium alloys having beta-crystal structure are manufactured by a powder-metallurgic process. Starting with a powder comprising 10-40% by weight of Zn, 1-12% by weight of Al and the balance Cu, the solid bodies are formed by means of a cold compacting step, an optional hot compacting step and a hot extrusion step.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: August 25, 1981
    Assignee: Leuven Research and Development VZW
    Inventors: Andre E. A. Deruyttere, Lucas J. A. E. Delaey, Etienne A. D. Aernoudt, Josef R. Roos
  • Patent number: 4167481
    Abstract: Several metal ions, such as mercury, cadmium, copper, zinc, nickel and cobalt, may be removed from waste waters and similar solutions by treating such solutions with a cation exchanger in the presence of a polyamine. A treatment with clay minerals such as bentonite or montmorillonite in the presence of tetraethylenepentamine is preferred. The solution may be first combined with polyamine and then contacted with the cation exchanger, but in a preferred embodiment, the polyamine and cation exchanger are combined first to form a solid adsorbent and then contacted with the solution.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: September 11, 1979
    Assignee: Leuven Research & Development VZW
    Inventors: Adrien E. J. Cremers, Andre P. A. Maes, Paul G. L. Piegneur