Patents by Inventor Sigurdur Asgeir Asgeirsson

Sigurdur Asgeir Asgeirsson 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).

  • Systems and methods of controlling pressure within a prosthetic knee
    Patent number: 7691154
    Abstract: The invention in some embodiments relates to systems and methods of controlling pressure within a prosthetic knee. The knee in one embodiment comprises a flexible diaphragm that substantially prevents or mitigates undesirable pressure build-up in a sealed chamber of the knee. The knee in another embodiment comprises a compressible gas in the chamber that substantially prevents or mitigates undesirable pressure build-up in the chamber.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: April 6, 2010
    Assignee: Össur hf
    Inventors: Sigurdur Asgeir Asgeirsson, Charles R. Bisbee, III, Henry H. Hsu