Patents by Inventor Astrid Bjørkøy

Astrid Bjørkøy 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).

  • Optical sensing of measurands
    Patent number: 7602498
    Abstract: A dome-shaped chemical sensing probe comprises an optical fiber or may be mounted on an optical fiber. The probe has a chemically sensitive measuring material which exhibits a change in volume and/or a change in refractive index in the presence of a given chemical. The change in volume and/or refractive index gives a change in an optical path length through the probe which can be measured interferometrically.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: October 13, 2009
    Assignee: Invivosense ASA
    Inventors: Dag R. Hjelme, Arne Berg, Reinold Ellingsen, Berit Falch, Astrid Bjørkøy, Dan Østling
  • Optical sensing of measurands
    Patent number: 7440110
    Abstract: A chemical sensing probe comprises an optical fiber or may be mounted on an optical fiber. The probe has a chemically sensitive measuring material which exhibits a change in volume and/or a change in refractive index in the presence of a given chemical. The change in volume and/or refractive index gives a change in an optical path length through the probe which can be measured interferometrically.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: October 21, 2008
    Assignee: Invivosense ASA
    Inventors: Dag R. Hjelme, Arne Berg, Reinold Ellingsen, Berit Falch, Astrid Bjørkøy, Dan Østling