Patents by Inventor Hendrik Hemker

Hendrik Hemker 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: 8802386
    Abstract: A method is provided for determining in real time the course of thrombin activity in a sample of blood or plasma as it appears in and disappears from the simple which comprises adding a thrombin substrate to the sample that, per unit time, produces a detectable signal in a quantity that bears relation to the amount of thrombin present. Simultaneously, in a control sample of the same blood or plasma in which thrombin generation is not triggered, the activity of a standard preparation with invariable thrombin activity is measured. The exact molar amount of thrombin present at any moment is obtained by comparison of the activity measured in clotting blood and the simultaneously measured calibrator. The method is useful inter alia for diagnosing hyper- and hypo-coaguable states, either congenital, acquired or drug-induced in humans and animals. Also provided is a kit for use in this method.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: August 12, 2014
    Assignee: Synapse B.V.
    Inventors: Peter Giesen, Hendrik Hemker, Raed Al Dieri, Suzette L. Beguin, Robert Wagenvoord
  • Publication number: 20060051828
    Abstract: A method is provided for determining in real time the course of thrombin activity in a sample of blood or plasma as it appears in and disappears from the simple which comprises adding a thrombin substrate to the sample that, per unit time, produces a detectable signal in a quantity that bears relation to the amount of thrombin present. Simultaneously, in a control sample of the same blood or plasma in which thrombin generation is not triggered, the activity of a standard preparation with invariable thrombin activity is measured. The exact molar amount of thrombin present at any moment is obtained by comparison of the activity measured in clotting blood and the simultaneously measured calibrator. The method is useful inter alia for diagnosing hyper- and hypo-coaguable states, either congenital, acquired or drug-induced in humans and animals. Also provided is a kit for use in this method.
    Type: Application
    Filed: May 1, 2003
    Publication date: March 9, 2006
    Applicant: Synapse B. V.
    Inventors: Peter Giesen, Hendrik Hemker, Raed Al Dieri, Suzette Beguin, Robert Wagenvoord
  • Publication number: 20060003921
    Abstract: Described is a pharmaceutical preparation for treating blood coagulation disorders comprising an effective amount of vWF propeptide as well as a method for producing such a preparation.
    Type: Application
    Filed: September 2, 2005
    Publication date: January 5, 2006
    Applicant: Baxter Aktiengesellschaft
    Inventors: Hans-Peter Schwarz, Katalin Varadi, Peter Turecek, Hendrik Hemker, Suzette Beguin
  • Patent number: 5721357
    Abstract: The invention relates to new mixtures of sulfated oligosaccharides having the general structure of heparin constitutive oligosaccharides, having an average molecular mass of 6.+-.0.6 kD, a polydispersiveness close to 1 and the capacity of inhibiting the production of thrombin. The invention also relates to their preparation and to pharmaceutical compositions containing them.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: February 24, 1998
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Jean-Pierre Baron, Andre Brun, Hendrik Hemker, Andre Uzan
  • Patent number: 5707973
    Abstract: The invention relates to new mixtures of sulfated oligosaccharides having the general structure of heparin constitutive oligosaccharides, having an average molecular mass of 6.+-.0.6 kD, a polydispersiveness close to 1 and the capacity of inhibiting the production of thrombin. The invention also relates to their preparation and to pharmaceutical compositions containing them.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: January 13, 1998
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Jean-Pierre Baron, Andre Brun, Hendrik Hemker, Andre Uzan