Chun Cheung Law

LL Leco Stationery Manufacturing Company Limited: 4 patents #2 of 5Top 40%

WC World Wide Stationery Mfg. Co.: 2 patents #13 of 21Top 65%

📍 Sha Tin, CN: #245 of 2,424 inventorsTop 15%

Overall (All Time): #886,000 of 4,157,543Top 25%

Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
5868513	Ring binder	—	1999-02-09
5810499	Ring binder	—	1998-09-22
5788390	Ring binder	—	1998-08-04
D389182	Ring binder	—	1998-01-13
5378073	Ring binder carrier rail	—	1995-01-03
5368407	Ring binder carrier rails	—	1994-11-29