Patents by Inventor Wenyan Liang

Wenyan Liang 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).

  • Pen
    Patent number: D648387
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: November 8, 2011
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D651240
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: December 27, 2011
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D651241
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: December 27, 2011
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D651247
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 27, 2011
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D654951
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: February 28, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Marker
    Patent number: D659756
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 15, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D662977
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: July 3, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D667875
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: September 25, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen cap
    Patent number: D669129
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: October 16, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D672808
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 18, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventors: Wenyan Liang, Linghua Jiang
  • Pen
    Patent number: D672809
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 18, 2012
    Assignee: Beifa Group Co., Ltd.
    Inventors: Linghua Jiang, Wenyan Liang
  • Pen
    Patent number: D679324
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 2, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D679325
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 2, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D679327
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 2, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D682935
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: May 21, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang
  • Pen
    Patent number: D690357
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: September 24, 2013
    Assignee: Beifa Group Co., Ltd.
    Inventor: Wenyan Liang