Patents Assigned to Orion-Yhtyma Oy-Orion Diagnostica
  • Method and test kit for pretreatment of object surfaces
    Patent number: 5910420
    Abstract: The present invention provides a method for the pretreatment of object surfaces prior to taking a sample for microbial analysis. The method uses a blend to remove biofilms without hindering the growth of microorganisms. The method allows for reliable and replicable determination of microorganisms formed on the investigated surfaces.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: June 8, 1999
    Assignee: Orion-Yhtyma Oy Orion Diagnostica
    Inventors: Helena Tuompo, Gun Wirtanen, Satu Salo, Leena Scheinin, Ari Batsman, Seija Levo
  • Method for investigating microorganisms
    Patent number: 4054490
    Abstract: A method of investigating the effect of a biologically active agent, present in degrees of concentration increasing from one end to the other in an elongate carrier for the agent, said carrier being applied to microorganisms cultivated on an elongate continuous cultivating substance, the required concentration of the agent, for it to be effective, corresponding to the distance alongside said carrier over which growth of colonies of microorganisms is not visible.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: October 18, 1977
    Assignee: Orion-Yhtyma Oy-Orion Diagnostica
    Inventor: Olof Alfred Yngve Vesterberg