Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Ian C. Stewart — 2 Patents in 2021

ExxonMobil: 2 patents #126 of 843Top 15%
Houston, TX: #394 of 2,552 inventorsTop 20%
Texas: #2,895 of 16,780 inventorsTop 20%
Overall (2021): #154,495 of 548,734Top 30%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11142021 Chain end functionalized polyolefins for improving wet traction and rolling resistance of tire treads Edward J. Blok, Yong Yang, Jingwen Zhang, Shuji Luo, Andy H. Tsou 2021-10-12
10882981 Propylene-based polymer additives for improved tire tread performance Edward J. Blok, Anthony J. Dias, Sunny Jacob, Yong Yang, Jingwen Zhang 2021-01-05