Patents by Inventor John Heilstedt

John Heilstedt 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: D478241
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: August 12, 2003
    Assignee: Elkay Manufacturing Company
    Inventors: John Heilstedt, Steve Sorensen, Jon W. Hauser, II
  • Patent number: D485727
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 27, 2004
    Assignee: Elkay Manufacturing Company
    Inventors: John Heilstedt, Steve Sorensen, Jon W. Hauser, II