Patents by Inventor Martti Kähkönen

Martti Kähkönen 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).

  • Method and measuring apparatus for measuring freeness
    Patent number: 6523395
    Abstract: The invention relates to a method and measuring apparatus for measuring freeness. Freeness is measured with the help of an automatic data processing apparatus (30) so that the flow rate of a liquid draining from a measuring chamber (10) is measured using the measuring apparatus (12) until the flow rate is equal to or lower than a predefined flow rate.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: February 25, 2003
    Assignee: Metso Automation Oy
    Inventor: Martti Kähkönen