Patents by Inventor Kaisa LEHMUS

Kaisa LEHMUS 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).

  • Dual gas sensor structure and measurement method
    Patent number: 9927412
    Abstract: The invention relates to a sensor structure and a method. The sensor structure includes a first sensor having a sensing element sensitive to humidity of the environment. In accordance with the invention the sensor structure also includes s second sensor having a sensing element sensitive to humidity, the second sensor comprising a catalytic permeable layer positioned on the second sensor such that it is between the sensing element of the second sensor and the environment.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: March 27, 2018
    Assignee: Vaisala Oyj
    Inventors: Veli-Pekka Viitanen, Kaisa Lehmus, Jukka Leppänen
  • A DUAL GAS SENSOR STRUCTURE AND MEASUREMENT METHOD
    Publication number: 20160084811
    Abstract: The invention relates to a sensor structure and a method. The sensor structure includes a first sensor having a sensing element sensitive to humidity of the environment. In_accordance with the invention the sensor structure also includes s second sensor having a sensing element sensitive to humidity, the second sensor comprising a catalytic permeable layer positioned on the second sensor such that it is between the sensing element of the second sensor and the environment.
    Type: Application
    Filed: May 27, 2014
    Publication date: March 24, 2016
    Inventors: Veli-Pekka VIITANEN, Kaisa LEHMUS, Jukka LEPPÄNEN