Patents by Inventor Douglas Dawson Greenway

Douglas Dawson Greenway 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 filter
    Patent number: D638516
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: May 24, 2011
    Assignee: Greenway Home Products Ltd.
    Inventors: Laura Lynn Greenway-Balnar, Douglas Dawson Greenway
  • Water filter
    Patent number: D638517
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: May 24, 2011
    Assignee: Greenway Home Products Ltd.
    Inventors: Laura Lynn Greenway-Balnar, Douglas Dawson Greenway