Chang Yuan Xu

UB U.S. Ring Binder: 1 patents #1 of 2Top 50%

Overall (2016): #434,644 of 481,213Top 95%

Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9499007	Gear operated ring binder	Paul Whaley	2016-11-22