Patents by Inventor Fung Kut Hui

Fung Kut Hui 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).

  • Powered toothbrush with curved neck and flexible shaft
    Patent number: 7793375
    Abstract: A powered toothbrush having a curved neck and a flexible shaft within said neck is provided. In a preferred embodiment, a powered toothbrush having a curved neck of a constant radius, a flexible shaft and a clutch mechanism to disengage the flexible shaft from a drive mechanism upon overload is provided.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: September 14, 2010
    Assignee: Colgate-Palmolive Company
    Inventors: Eduardo Jimenez, Fung Kut Hui, John J. Gatzemeyer
  • Powered toothbrush having a decorative facade
    Patent number: 7600284
    Abstract: The present invention relates to a powered toothbrush containing a decorative facade, which facade may be permanently attached to the brush handle or may be replaceable by the user.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: October 13, 2009
    Assignee: Colgate-Palmolive
    Inventors: Fung Kut Hui, Joseph Edward Fattori, Tau Dai, John J. Gatzemeyer
  • Powered toothbrush having a decorative facade
    Publication number: 20050125920
    Abstract: The present invention relates to a powered toothbrush containing a decorative facade, which facade may be permanently attached to the brush handle or may be replaceable by the user.
    Type: Application
    Filed: November 22, 2004
    Publication date: June 16, 2005
    Inventors: Fung Kut Hui, Joseph Edward Fattori, Tau Dai, John Gatzemeyer
  • Powered toothbrush with curved neck, flexible shaft and tapered head
    Publication number: 20040226120
    Abstract: A powered toothbrush having a curved neck, a flexible shaft within the neck and a tapered head is provided. In a preferred embodiment, a powered toothbrush having a curved neck of a constant radius, a flexible shaft and tapered head is provided.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Inventors: Eduardo Jimenez, Fung Kut Hui, John J. Gatzemeyer
  • Powered toothbrush with curved neck and flexible shaft
    Publication number: 20040226119
    Abstract: A powered toothbrush having a curved neck and a flexible shaft within said neck is provided. In a preferred embodiment, a powered toothbrush having a curved neck of a constant radius, a flexible shaft and a clutch mechanism to disengage the flexible shaft from a drive mechanism upon overload is provided.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Inventors: Eduardo Jimenez, Fung Kut Hui, John J. Gatzemeyer
  • Electric toothbrush with in-use activation of bristles
    Publication number: 20040049867
    Abstract: An electric toothbrush apparatus includes a longitudinal drive shaft, an in-use activated tuft block, at least a portion of which is movably associated with the apparatus, and having a bearing surface that is driven directly or indirectly by the drive shaft. The in-use activated tuft block will not oscillate until its bristles are pressed against the user's teeth in use so as to close a gap behind the bearing surface.
    Type: Application
    Filed: September 13, 2002
    Publication date: March 18, 2004
    Applicant: Chiaphua Industries Limited
    Inventor: Fung Kut Hui
  • Powered toothbrush having a decorative facade
    Publication number: 20030213075
    Abstract: The present invention relates to a powered toothbrush containing a decorative facade, which facade may be permanently attached to the brush handle or may be replaceable by the user.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Inventors: Fung Kut Hui, Joseph Edward Fattori, Tau Dai, John J. Gatzemeyer
  • Electric toothbrushes
    Patent number: 5732432
    Abstract: An electric toothbrush has an elongate shank and a drive shaft formed in two sections. The sections are drivingly coupled together by a coil spring. The shank is formed in two sections joined together by a flexible ribbed seal. The shank is able to flex while the drive shaft continues to run normally without adding strain to the electric motor which would increase electric power required. Rigid bars restrict the flexibility of the shank parts into a single plane.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: March 31, 1998
    Assignee: Addway Engineering Limited
    Inventor: Fung Kut Hui
  • Powered toothbrush bristle pattern
    Patent number: D476157
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: June 24, 2003
    Assignee: Colgate-Palmolive Company
    Inventors: John J. Gatzemeyer, Joseph Edward Fattori, Fung Kut Hui
  • Powered toothbrush bristle pattern
    Patent number: D477715
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: July 29, 2003
    Assignee: Colgate-Palmolive Company
    Inventors: John J. Gatzemeyer, Joseph Edward Fattori, Fung Kut Hui
  • Power toothbrush bristle pattern
    Patent number: D479402
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: September 9, 2003
    Assignee: Colgate-Palmolive Company
    Inventors: John J. Gatzemeyer, Joseph Edward Fattori, Fung Kut Hui