Patents by Inventor Du Chong

Du Chong 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).

  • Personal massager
    Patent number: D648861
    Type: Grant
    Filed: February 26, 2011
    Date of Patent: November 15, 2011
    Assignee: LELO Inc.
    Inventors: Du Chong, Filip Sedic
  • Vibrator
    Patent number: D652943
    Type: Grant
    Filed: February 26, 2011
    Date of Patent: January 24, 2012
    Assignee: LELO Inc.
    Inventors: Du Chong, Filip Sedic
  • Dual-action vibrator
    Patent number: D653349
    Type: Grant
    Filed: February 26, 2011
    Date of Patent: January 31, 2012
    Assignee: LELO Inc.
    Inventors: Du Chong, Filip Sedic