Patents by Inventor Chen Weiguo

Chen Weiguo 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).

  • Knife handle
    Patent number: D632755
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: February 15, 2011
    Assignee: Taylor Brands, LLC
    Inventor: Chen Weiguo
  • Ratchet lock
    Patent number: D681411
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: May 7, 2013
    Assignee: Master Lock Company LLC
    Inventors: Jason Qin, Chen Weiguo
  • Ratchet lock
    Patent number: D729026
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Master Lock Company LLC
    Inventors: Jason Qin, Chen Weiguo