Patents by Inventor Qian Zheng Zhou

Qian Zheng 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).

  • Dustpan
    Patent number: D684331
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: June 11, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Lloyd S. Vasilakes, Qian Zheng Zhou, Giuseppe De Bellis, Lizabeth W. Dretzka, Valentina Tronconi, Monica Jerez, Adel M. Kassem Llano
  • Cleaning tool
    Patent number: D685547
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: July 2, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Lloyd S. Vasilakes, Qian Zheng Zhou, Giuseppe De Bellis, Valentina Tronconi, Monica Jerez, Adel M. Kassem Llano
  • Dustpan
    Patent number: D687204
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: July 30, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Lloyd S. Vasilakes, Qian Zheng Zhou, Giuseppe De Bellis, Lizabeth W. Dretzka, Valentina Tronconi, Monica Jerez, Adel M. Kassem Llano
  • Cleaning tool
    Patent number: D699909
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: February 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Lloyd S. Vasilakes, Qian Zheng Zhou, Giuseppe De Bellis, Valentina Tronconi, Monica Jerez, Adel M. Kassem Llano