Patents by Inventor Patrick Van Dreden

Patrick Van Dreden 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: 20220170943
    Abstract: The present invention is a novel blood or plasma panel with utility in assessing chronic liver disease severity in a point-of-care setting. The scoring system exhibits 97.2% correlation to previously assigned Child Pugh scores and does not require clinical assessment beyond laboratory testing.
    Type: Application
    Filed: August 5, 2019
    Publication date: June 2, 2022
    Applicant: University of Cincinnati
    Inventors: Clayton Lewis, Vladimir Bogdanov, Patrick Van Dreden
  • Patent number: 8647833
    Abstract: The invention concerns the field of hemostasis, in particular blood coagulation disorders linked to an abnormal expression of tissue factor, and to physiopathological phenomena correlated with over-expression of the factor. The present invention provides a method for assaying the activity of circulating tissue factor in a biological sample. The method of the invention is carried out in vitro, in particular on a blood sample collected from a patient.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: February 11, 2014
    Assignee: Diagnostica Stago
    Inventors: Patrick Van Dreden, Aurelie Rousseau, Barry Woodhams
  • Publication number: 20110306058
    Abstract: A method for the in vitro measurement of the thromboduline functional activity, includes dosing in a biological medium, and from a biological sample, the thrombine-activation of C protein into activated C protein (PCa) in the presence of its co-factor or the thromboduline, the method including adding to the sample plasma the agents necessary for activating the C protein system, adding purified C protein and also adding a fibrin polymerisation inhibitor. Also described is application of the method in the detection of coagulation pathologies.
    Type: Application
    Filed: November 28, 2007
    Publication date: December 15, 2011
    Applicant: DIAGNOSTICA STAGO
    Inventors: Patrick Van Dreden, Aurelie Rousseau
  • Publication number: 20110250621
    Abstract: The invention concerns the field of hemostasis, in particular blood coagulation disorders linked to an abnormal expression of tissue factor, and to physiopathological phenomena correlated with over-expression of the factor. The present invention provides a method for assaying the activity of circulating tissue factor in a biological sample. The method of the invention is carried out in vitro, in particular on a blood sample collected from a patient.
    Type: Application
    Filed: July 16, 2009
    Publication date: October 13, 2011
    Applicant: DIAGNOSTICA STAGO
    Inventors: Patrick Van Dreden, Aurelie Rousseau, Barry Woodhams
  • Patent number: 6251619
    Abstract: A process for determining a resistance to activated protein C of a test specimen of human plasma following the steps of: (1) mixing together (a) the test specimen of human plasma, (b) a reactant deficient in factor V which supplies at least most of the coagulation factors other than factor V, and (c) the venom of Crotalus viridis helleri which specifically activates factor X to Xa, and incubating the mixture of (a), (b) and (c) for at least one minute at a temperature of between 10 and 45° C.; (2) introducing into the incubated mixture(i) Ca2+ or (ii) Ca2++exogenic activated protein C; and (3) determining the coagulation time (i) in the absence of activated protein C and (ii) in the presence of activated protein C. Steps (1) to (3) are repeated, but replacing, in step (1), the test specimen with a normal plasma as control and correlating resistance to activated protein C by comparing the determinations made in steps for the test specimen and for the normal plasma.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: June 26, 2001
    Assignee: Societe Diagnostica Stago
    Inventor: Patrick Van Dreden
  • Patent number: 6114136
    Abstract: The invention relates to the use of a serum rich in factor Va for the preparation of compositions useful as pathological controls or calibrants in methods for analyzing resistance to activated protein C (APC), as well as said compositions, the method for their preparation and a method for the detection of resistance to activated protein C.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: September 5, 2000
    Assignee: Diagnostica Stago
    Inventors: Patrick Van Dreden, Jean-Luc Martinoli