YJ

Yang Jianjie

SC Spector & Co.: 1 patents #1 of 5Top 20%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Dongwu, CN: #1 of 1 inventorsTop 100%
Overall (All Time): #3,270,137 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D648786 Ballpoint pen combined with a marker — 2011-11-15