Patents by Inventor Duco Willem Johannes Noordzij

Duco Willem Johannes Noordzij 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).

  • Head gear top portion
    Patent number: D638586
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: May 24, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Michael David Aaskov, Duco Willem Johannes Noordzij
  • Vent openings in head gear
    Patent number: D708792
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: July 8, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Michael David Aaskov, Duco Willem Johannes Noordzij, David Rogers