Patents by Inventor Ernest Kin Man To

Ernest Kin Man To 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).

  • Energy saving lamp
    Patent number: D549361
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: August 21, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Kun Peng, Jiali Xu
  • Twisted lamp
    Patent number: D549362
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: August 21, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Kun Peng, Jiali Xu
  • Solid state lighting spot
    Patent number: D581554
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: November 25, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Nan Zhao
  • Solid state lighting spot
    Patent number: D581555
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: November 25, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Nan Zhao
  • Solid state lighting spot
    Patent number: D581556
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: November 25, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Nan Zhao
  • Solid state lighting spot
    Patent number: D584838
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: January 13, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Yongsi Bi
  • Solid state lighting spot
    Patent number: D593222
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: May 26, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ernest Kin Man To, Nan Zhao
  • Lamp
    Patent number: D605337
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: December 1, 2009
    Assignee: Koninklikje Philips Electronics N.V.
    Inventors: Li Zhang, Ernest Kin Man To