Patents Assigned to Laboratoires Merck-Clevenot
  • Immunodiagnostic reagent for carrying out a multi-stage immunoassay of at least one biological substance in a plurality of biological samples
    Patent number: 5736413
    Abstract: An immunodiagnostic reagent consists of magnetic balls covered with a substance binding specifically to a substance to be detected in suspension in a suitable liquid. The magnetic balls consist of an organic matrix enclosing a magnetic charge and having a magnetizable material mass/non-magnetizable material mass ratio between 60 and 70%.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 7, 1998
    Assignee: Laboratoires Merck Clevenot
    Inventors: Michel Uzan, Thierry Gicquel, Edouard Lentwojt, Dario Marminio
  • Washing head in automatic immunological assay apparatus
    Patent number: 5514330
    Abstract: Automatic apparatus for immunological assay, in which reaction vessels containing samples to be analyzed and reagents are carried by a rotary module which is rotated stepwise, and which is associated with a washing head including needles for sucking up and for injecting liquid for washing magnetic particles in the reaction vessels, and additional needles for sucking up and for injecting a cleaning or washing liquid for the reaction vessels.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: May 7, 1996
    Assignee: Laboratoires Merck-Clevenot
    Inventors: Michel Uzan, Thierry Gicquel