Patents by Inventor Ya Li Zhou

Ya Li Zhou 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).

  • Portable electric drill
    Patent number: D689754
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: September 17, 2013
    Assignee: Makita Corporation
    Inventors: Noahiro Hayakawa, Ya Li Zhou
  • Cover for brushcutter
    Patent number: D716116
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: October 28, 2014
    Assignee: Makita Corporation
    Inventors: Yuji Yamamoto, Yuki Nakamura, Yasuyuki Sakakibara, Ya Li Zhou, Zhi Qiang Lu