Patents by Inventor Desire J. Collen

Desire J. Collen 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: 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: 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
  • 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
  • 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: 5336495
    Abstract: The present invention relates to the use of staphylokinase for the preparation of a pharmaceutical composition for treating arterial thrombosis, such as e.g. myocardial infarction. It is demonstrated that staphylokinase can be particularly useful as a thrombolytic agent for the lysis of platelet-rich clots. Furthermore it is demonstrated that staphylokinase, unlike streptokinase, does not induce antibody induction upon repeated administration.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: August 9, 1994
    Assignees: Leuven Research & Development vcw, Desire J. Collen
    Inventors: Desire J. Collen, Jean-Marie Stassen, Henri R. Lijnen
  • 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: 4623718
    Abstract: Novel chemical compounds which are heparin fragments with a molecular weight of from 2,000 to 5,500 covalently bound to antithrombin III, and their use in medicine.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: November 18, 1986
    Assignee: KabiVitrum AB
    Inventor: Desire J. Collen
  • Patent number: 4346029
    Abstract: A newly isolated constituent of human blood plasma, called antiplasmin, is disclosed together with its isolation method. Further, the invention relates to antiplasmin, a newly isolated constituent of the human blood plasma and to its method of isolation. Further, an antiplasmin-antiserum together with its preparation and utilization, and a method of determining antiplasmin in blood samples are disclosed.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: August 24, 1982
    Assignee: Leuven Research & Development V.Z.W.
    Inventor: Desire J. Collen
  • Patent number: 4216291
    Abstract: A thrombosis test is based on the presence of specific, newly-found, enzyme-inhibitor complexes (such as plasmin-antiplasmin, plasmin-.alpha..sub.2 -macroglobulin, thrombin-antithrombin-III) in blood samples having an activated blood coagulation and/or fibrinolytic system. The test is immunochemical and uses a purified antiserum which has been generated against the enzyme-inhibitor complex. The antiserum is purified by incubating the antiserum with plasminogen and fresh blood plasma and isolating a gamma globulin fraction containing antibodies specific to the enzyme-inhibitor complex. A reagent for the test is prepared by contacting a blood cell suspension or a latex of particles of synthetic resin with the purified antiserum to obtain a suspension or latex in which antibodies from the antiserum are present on the surface of the cells or particles.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: August 5, 1980
    Assignee: Leuven Research & Development V.Z.W.
    Inventor: Desire J. Collen
  • Patent number: 4202872
    Abstract: A test for determining the anti-coagulation level in blood samples is based on ascertaining the presence of heparin-antithrombin-III complex therein. This may be done with the aid of antibodies against thrombin-antithrombin-III complex, such antibodies being used e.g. in the form of a latex reagent or a bloodcell reagent.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: May 13, 1980
    Assignee: Leuven Research & Development V.Z.W.
    Inventor: Desire J. Collen
  • Patent number: 4198335
    Abstract: The invention relates to antiplasmin, a newly isolated constituent of the human blood plasma and to its method of isolation. Further, an antiplasmin-antiserum together with its preparation and utilization, and a method of determining antiplasmin in blood samples are disclosed.
    Type: Grant
    Filed: March 8, 1977
    Date of Patent: April 15, 1980
    Assignee: Leuven Research & Development V.Z.W.
    Inventor: Desire J. Collen
  • Patent number: 4180437
    Abstract: Antiserum which has been generated against an enzyme-inhibitor-complex is purified by immunoprecipitating a freshly generated antiserum with fresh human bloodplasma to form a precipitate and a fluid, and subjecting the fluid to chromatographic separation over an insolubilized enzyme-inhibitor complex against which the antiserum has been generated. A reagent for immunochemical assay is prepared by contacting the purified antiserum with red bloodcells or synthetic resin particles to obtain on the surface of the red bloodcells or synthetic resin particles antibodies from the antiserum. In a diagnosis test, blood plasma is contacted with the purified antiserum and with red bloodcells or synthetic resin particles which bear the enzyme-inhibitor complex used to prepare the antiserum, and whether or not agglutination occurs is ascertained.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: December 25, 1979
    Assignee: Leuven Research & Development V.Z.W.
    Inventor: Desire J. Collen