Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
YC

Yihao Chai — 1 Patent

L'L'Oreal: 1 patents #1,282 of 2,221Top 60%
Shanghai, CN: #10,789 of 19,267 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Yihao Chai has been granted 1 US patent while listed as an inventor at L'Oreal. All of these patents were granted in 2017. Yihao Chai ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Yihao Chai in Shanghai, CN.

Issued Patents All Time

Showing 1–1 of 1 patents

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