Patents by Inventor Per-Ake Ostlund

Per-Ake Ostlund 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).

  • Water purifier
    Patent number: D325767
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: April 28, 1992
    Assignee: Aktiebolaget Electrolux
    Inventor: Per-Ake Ostlund
  • Welding machine
    Patent number: D652436
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: January 17, 2012
    Assignee: ESAB AB
    Inventors: Per-Ake Ostlund, Bjorn Thor