William John Mason has been granted 4 US patents while listed as an inventor at Celgard . The first was granted in 2020 and the most recent in July 2024. William John Mason ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list William John Mason in McConnells, SC, US.
Patents per Year Patents granted per year, 2020 to 2024 Bar chart with a peak of 2 patents in 2023. peak 2 2020: 1 patents 2020 2023: 2 patents 2023 2024: 1 patents 2024
Issued Patents All Time
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Showing 1–4 of 4 patents
Patent # Title Co-Inventors Date
12040456 Membranes, calendered microporous membranes, battery separators, and related methods Kristoffer K. Stokes , Kang Karen Xiao , Xiaomin Zhang , Barry J. Summey , Robert Moran +7 more 2024-07-16
11607856 Porous membrane wipes and methods of manufacture and use Kristoffer K. Stokes , Karl F. Humiston , Changqing Wang Adams 2023-03-21
11569549 Membranes, calendered microporous membranes, battery separators, and related methods Kristoffer K. Stokes , Kang Karen Xiao , Xiaomin Zhang , Barry J. Summey , Robert Moran +7 more 2023-01-31
10777800 Membranes, calendered microporous membranes, battery separators, and related methods Kristoffer K. Stokes , Kang Karen Xiao , Xiaomin Zhang , Barry J. Summey , Robert Moran +7 more 2020-09-15