Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
WG

Weiyi Guan

L'L'Oreal: 1 patents #1,282 of 2,221Top 60%
Overall (All Time): #2,948,228 of 4,157,543Top 75%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9668949 Colour changing composition in O/W emulsion form Yihao Chai, Xuedong Liu, Qing Yu, Jing Chen 2017-06-06