Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Nark — 2 Patents in 2021

CECelgard: 2 patents #9 of 41Top 25%
Fort Mill, SC: #11 of 58 inventorsTop 20%
South Carolina: #223 of 1,711 inventorsTop 15%
Overall (2021): #118,278 of 548,734Top 25%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11101525 Laminated multilayer membranes, separators, batteries, and methods Xiaomin Zhang, Eric White, Kang Karen Xiao, Insik Jeon, Kristoffer K. Stokes +2 more 2021-08-24
11056750 Microlayer membranes, improved battery separators, and methods of manufacture and use Kang Karen Xiao, Eric J. Penegar, Takahiko Kondo, Eric White, Xiaomin Zhang +1 more 2021-07-06