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Brian R. Stepp — 8 Patents

CECelgard: 7 patents #23 of 126Top 20%
TOTransitions Optical: 1 patents #94 of 143Top 70%
Scottsdale, AZ: #485 of 3,386 inventorsTop 15%
Arizona: #4,629 of 32,909 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Brian R. Stepp has been granted 8 US patents while listed as an inventor at Celgard. The first was granted in 2019 and the most recent in September 2025. Brian R. Stepp ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Brian R. Stepp in Scottsdale, AZ, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12412956 Battery separators, coated battery separators, batteries, and related methods Kang Karen Xiao, Allen M. Donn, Stefan Reinartz, Changqing Wang Adams, Masaaki Okada +2 more 2025-09-09
12040456 Membranes, calendered microporous membranes, battery separators, and related methods Kristoffer K. Stokes, William John Mason, Kang Karen Xiao, Xiaomin Zhang, Barry J. Summey +7 more 2024-07-16
11969929 Microlayer membranes, battery separators, batteries, and related methods Kang Karen Xiao, Stefan Reinartz, Takahiko Kondo, Hisaki Ikebata, Eric J. Penegar +6 more 2024-04-30
11923497 Additives for improved battery performance, improved additive-containing membranes, improved battery separators, improved batteries, and related methods Changqing Wang Adams, Kang Karen Xiao, Stefan Reinartz, Masaaki Okada, Yao Lu +2 more 2024-03-05
11569549 Membranes, calendered microporous membranes, battery separators, and related methods Kristoffer K. Stokes, William John Mason, Kang Karen Xiao, Xiaomin Zhang, Barry J. Summey +7 more 2023-01-31
11165121 Additives for improved battery performance, improved additive-containing membranes, improved battery separators, improved batteries, and related methods Changqing Wang Adams, Kang Karen Xiao, Stefan Reinartz, Masaaki Okada, Yao Lu +2 more 2021-11-02
10777800 Membranes, calendered microporous membranes, battery separators, and related methods Kristoffer K. Stokes, William John Mason, Kang Karen Xiao, Xiaomin Zhang, Barry J. Summey +7 more 2020-09-15
10501477 Photochromic thienochromene compounds Jun Deng, Eric Spitler, Wenjing Xiao, Massimiliano Tomasulo, Robert W. Walters 2019-12-10

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