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

Qing Yu — 4 Patents in 2017

L'L'Oreal: 4 patents #10 of 221Top 5%
Overall (2017): #39,623 of 506,227Top 8%
4 Patents 2017

Issued Patents 2017

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9707161 Color-changing composition Xuedong Liu, Cyril Lemoine 2017-07-18
9675533 Colour changing composition in gel form Rong Zhu, Xuedong Liu, Juan Chu, Jing Chen 2017-06-13
9668949 Colour changing composition in O/W emulsion form Yihao Chai, Xuedong Liu, Weiyi Guan, Jing Chen 2017-06-06
9662283 Colour changing composition Cyril Lemoine, Xuedong Liu, Juan Chu 2017-05-30