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

Patrick M. Campbell — 6 Patents

3M: 6 patents #2,542 of 11,543Top 25%
Saint Paul, MN: #198 of 620 inventorsTop 35%
Minnesota: #11,902 of 52,454 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Patrick M. Campbell has been granted 6 US patents while listed as an inventor at 3M. The first was granted in 2012 and the most recent in November 2020. Patrick M. Campbell ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Patrick M. Campbell in Saint Paul, MN, US.

Patents per Year

Patents granted per year, 2012 to 2020Bar chart with a peak of 2 patents in 2012.peak 22012: 2 patents20122013: 1 patents20132015: 1 patents20152017: 1 patents20172020: 1 patents2020

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10823717 Wireless power transfer and sensing for monitoring pipelines Stephen J. Willett, Ronald D. Jesme, Mohsen Salehi, Andrew P. Bonifas, Erik A. Aho +2 more 2020-11-03 $55,691,000
9575352 Addressable switchable transparent display Brian T. Weber, Qingbing Wang, Glenn E. Casner, Guanglei Du, John A. Wheatley 2017-02-21 $23,609,000
9137542 Audio encoding of control signals for displays Brian T. Weber, Benjamin Keith Stein 2015-09-15 $19,651,000
8599353 Display comprising a plurality of substrates and a plurality of display materials disposed between the plurality of substrates that are connected to a plurality of non-overlapping integral conductive tabs Thomas R. Corrigan, Dennis M. Brunner 2013-12-03 $10,265,000
8269801 Unipolar gray scale drive scheme for cholesteric liquid crystal displays 2012-09-18 $13,703,000
8217930 Fast transitions of large area cholesteric displays Erich C. Walter 2012-07-10 $33,968,000