Patents by Inventor Jorn S. Watvedt

Jorn S. Watvedt 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).

  • Filtration device
    Patent number: 5302354
    Abstract: A filtration device has a particulate filter element and a sorbent filter element having different flow properties. When viewed in cross section, the particulate filter element has inner and outer legs that form generally the shape of a W and define a space between the outer legs. The sorbent filter element is disposed in the space within the first filter element.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: April 12, 1994
    Assignee: Pall Corporation
    Inventors: Jorn S. Watvedt, Staffan B. Linnersten