Patents by Inventor Karin Oldberg

Karin Oldberg 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 device for analysing surface structure in paper or board
    Patent number: 7510629
    Abstract: A method for analyzing in real-time in a paper machine or board machine the surface structure of a web (1) of paper or board which method comprises the direction of an imaging system towards a pre-determined area (3) of the web (1), the arrangement of an illumination system to illuminate the region from a pre-determined direction with obliquely incident light, and the arrangement of an image analysis system in association with the imaging system.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: March 31, 2009
    Assignee: Stora Enso AB
    Inventors: Magnus Ekberg, Per-Olof Ersson, Olle Henningsson, Karin Oldberg, Tomas Oldberg, Karl-Heinz Rigerl, Bosse Wigge
  • Method and device for analysing surface structure in paper or board
    Publication number: 20060272788
    Abstract: A method for analysing in real-time in a paper machine or board machine the surface structure of a web (1) of paper or board which method comprises the direction of an imaging system towards a pre-determined area (3) of the web (1), the arrangement of an illumination system to illuminate the region from a pre-determined direction with obliquely incident light, and the arrangement of an image analysis system in association with the imaging system.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 7, 2006
    Applicant: STORA ENSO AB
    Inventors: Magnus Ekberg, Per-Olof Ersson, Olle Henningsson, Karin Oldberg, Tomas Oldberg, Karl-Heinz Rigerl, Bosse Wigge