Patents by Inventor Doyle Scott Butler

Doyle Scott Butler 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: D500569
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: January 4, 2005
    Assignee: Acuity Brands, Inc.
    Inventor: Doyle Scott Butler
  • Patent number: D447590
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: September 4, 2001
    Assignee: NSI Enterprises, Inc.
    Inventors: Sayed A. Raouf, Doyle Scott Butler
  • Patent number: D552778
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: October 9, 2007
    Assignee: Acuity Brands, Inc.
    Inventor: Doyle Scott Butler
  • Patent number: D553779
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: October 23, 2007
    Assignee: Acuity Brands, Inc.
    Inventor: Doyle Scott Butler
  • Patent number: D553781
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: October 23, 2007
    Assignee: Acuity Brands, Inc.
    Inventors: Paul Kenneth Pickard, James Michael Lay, Doyle Scott Butler, Mark Campbell Logan, Leslie Charles King