Patents by Inventor Esko Karpanoja

Esko Karpanoja 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 for measuring gases and corresponding ion mobility spectrometer
    Patent number: 8247765
    Abstract: The invention relates to a method and device for measuring gaseous substances, in which the method comprises the stages: ionization of the sample gas in a gas flow, leading of the ionized gas flow through an elongated ion-mobility measuring chamber in the cross-section defined by it, filtering out of ions from the ionized gas flow at a distance from the measuring electrodes, permitting the passage of only the ions travelling from the flow cross-section at the selected point, separation of ions with a different ion mobility, with the aid of a transverse static electric field and at least one measuring-electrode pair arranged along the wall of the measuring chamber.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 21, 2012
    Assignee: Environics Oy
    Inventors: Terhi Mattila, Osmo Anttalainen, Esko Karpanoja, Heikki Paakkanen, Tero Katto, Erkka Saukko
  • METHOD FOR MEASURING GASES AND CORRESPONDING ION MOBILITY SPECTROMETER
    Publication number: 20110006199
    Abstract: The invention relates to a method and device for measuring gaseous substances, in which the method comprises the stages: ionization of the sample gas in a gas flow, leading of the ionized gas flow through an elongated ion-mobility measuring chamber in the cross-section defined by it, filtering out of ions from the ionized gas flow at a distance from the measuring electrodes, permitting the passage of only the ions travelling from the flow cross-section at the selected point, separation of ions with a different ion mobility, with the aid of a transverse static electric field and at least one measuring-electrode pair arranged along the wall of the measuring chamber.
    Type: Application
    Filed: April 2, 2009
    Publication date: January 13, 2011
    Applicant: ENVIRONICS OY
    Inventors: Terhi Mattila, Osmo Anttalainen, Esko Karpanoja, Heikki Paakkanen, Tero Katto, Erkka Saukko