Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Brian Duffy — 6 Patents

BMBmic: 3 patents #55 of 125Top 45%
BIBuilding Materials Investment: 2 patents #73 of 182Top 45%
BABuilding Materials Corporation Of America: 1 patents #19 of 29Top 70%
Wayne, NJ: #133 of 644 inventorsTop 25%
New Jersey: #14,312 of 69,400 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Brian Duffy has been granted 6 US patents while listed as an inventor at Bmic. The first was granted in 2003 and the most recent in September 2025. Brian Duffy ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Brian Duffy in Wayne, NJ, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12428843 Composite membrane for building applications Li-Ying Yang, Jeffrey Avitabile, Joseph Nigro, Daniel Podewils, Brian A. Davis +4 more 2025-09-30
11767673 Composite membrane for building applications Li-Ying Yang, Jeffrey Avitabile, Joseph Nigro, Daniel Podewils, Brian A. Davis +4 more 2023-09-26
11097311 Hybrid layered structure, method and system including same Li-Ying Yang, Yan Zheng, Yixi Xiao 2021-08-24
9133621 Self adhesive universal inside corner patch for membrane roofing Sudhir Railkar, Lynn G. Picone, Dave Scott, Li-Ying Yang 2015-09-15
8808076 Impeller exhaust ridge vent Adem Chich, Sudhir Railkar, Walter Zarate 2014-08-19
6536498 Welding apparatus and method for joining roofing materials Krishna Srinivasan 2003-03-25