Patents by Inventor Stefan Stalgren

Stefan Stalgren 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).

  • Blower fan
    Patent number: D771229
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 8, 2016
    Assignee: Patterson Fan Company, Inc.
    Inventors: Stefan Stalgren, Michael Collins, Gheorghe Lupsea