Huang Yuan De

OI Olympia Tools International: 2 patents #4 of 7Top 60%

📍 Jiangcheng District, CN: #6 of 29 inventorsTop 25%

Overall (All Time): #1,516,906 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
9050729	Self loading utility knife	Wen Hao	2015-06-09
8984755	Retractable utility knife	—	2015-03-24
8201336	Retractable utility knife	—	2012-06-19