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

Robert Nark — 2 Patents in 2023

CECelgard: 2 patents #8 of 42Top 20%
Fort Mill, SC: #9 of 69 inventorsTop 15%
South Carolina: #203 of 1,772 inventorsTop 15%
Overall (2023): #114,200 of 537,848Top 25%
2 Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11784344 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 2023-10-10
11728546 Microporous membrane separators for lithium ion rechargeable batteries and related methods Xiaomin Zhang, Kang Karen Xiao, Ron Smith 2023-08-15