Patents by Inventor Chris Hilgers

Chris Hilgers 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).

  • Resin tank for a two tank water softener
    Patent number: D434103
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 21, 2000
    Assignee: Ecowater Systems, Inc.
    Inventors: Chris Fletcher, Chris Hilgers