Patents by Inventor Helge Gundersen

Helge Gundersen 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).

  • Patent number: 6207134
    Abstract: The invention relates to particulate contrast agents, especially contrast agents for MR imaging having a metal oxide core which is preferably superparamagnetic iron oxide. The particulate contrast agents are provided with a low coating density of a polyelectrolyte coating agent selected from structural polysaccharides and synthetic polymers, especially polyaminoacids. Unlike conventional coated particulates, the new particles have reduced or no effect on cardiovascular parameters, platelet depletion, complement activation and blood coagulation.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: March 27, 2001
    Assignee: Nycomed Imaging AS
    Inventors: Anne Kjersti Fahlvik, Anne Nævestad, Helge Gundersen, Per Strande, Jo Klaveness, Anne Jacobsen