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

Guojin ZHANG

L'L'Oreal: 3 patents #35 of 411Top 9%
New Jersey: #694 of 6,977 inventorsTop 10%
Overall (2021): #82,155 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11173102 Methods and compositions for removing color from color-treated hair Ronak RUGHANI 2021-11-16
11160742 Methods and compositions for improving hair color fastness and rejuvenating hair color Ronak RUGHANI 2021-11-02
11154479 Methods of removing color from color-treated hair Ronak RUGHANI 2021-10-26