Patents by Inventor Stephen D. Harada

Stephen D. Harada 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).

  • Toothbrush with longitudinal bristle reinforcement
    Patent number: 6438786
    Abstract: A toothbrush is disclosed including a head with a bristle mounting surface having a center section within which an array of bundles of bristles is mounted, and a pair of bristle supports located at either end of the center section which are effective to resist bending of the bristles within the center section in the longitudinal direction in response to brushing motion so that the tips of such bristles are maintained in contact with the teeth.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: August 27, 2002
    Inventor: Stephen D. Harada
  • Toothbrush
    Patent number: D458452
    Type: Grant
    Filed: May 6, 2000
    Date of Patent: June 11, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D459084
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: June 25, 2002
    Inventor: Stephen D. Harada
  • Stepped bristle array for a toothbrush head
    Patent number: D459085
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: June 25, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D460268
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: July 16, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D460624
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: July 23, 2002
    Inventor: Stephen D. Harada
  • Toothbrush handle
    Patent number: D461314
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: August 13, 2002
    Inventor: Stephen D. Harada
  • Toothbrush
    Patent number: D462175
    Type: Grant
    Filed: May 6, 2000
    Date of Patent: September 3, 2002
    Inventor: Stephen D. Harada
  • Toothbrush
    Patent number: D462176
    Type: Grant
    Filed: May 6, 2000
    Date of Patent: September 3, 2002
    Inventor: Stephen D. Harada
  • Stepped bristle array for a toothbrush head
    Patent number: D464797
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: October 29, 2002
    Inventor: Stephen D. Harada
  • Stepped bristle array for a toothbrush head
    Patent number: D464798
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: October 29, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D464800
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: October 29, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D464801
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: October 29, 2002
    Inventor: Stephen D. Harada
  • Toothbrush handle
    Patent number: D465089
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: November 5, 2002
    Inventor: Stephen D. Harada
  • Toothbrush
    Patent number: D465656
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: November 19, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D467081
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: December 17, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D467082
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: December 17, 2002
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D468538
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: January 14, 2003
    Inventor: Stephen D. Harada
  • Stepped bristle array for a toothbrush head
    Patent number: D540542
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: April 17, 2007
    Assignee: Ergonomic Dental Technologies, Inc.
    Inventor: Stephen D. Harada
  • Toothbrush head with stepped bristle array
    Patent number: D480876
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: October 21, 2003
    Assignee: Ergonomic Dental Technologies, Inc.
    Inventor: Stephen D. Harada