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USPTO Patent Rankings Data through Sept 30, 2025
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GLGuildline Instruments Limited: 3 patents #4 of 7Top 60%
Ottawa, CA: #1,320 of 6,399 inventorsTop 25%
Overall (All Time): #989,017 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10151777 Methods and systems for accuracy improvement in current comparators Mark Evans, Tomasz Barczyk, Kenneth Mikolajek 2018-12-11
9709612 Asynchronous AC measurement system Tomasz Barczyk, Petar Miljanic 2017-07-18
9632164 Methods and systems for accuracy improvement in current comparators Mark Evans, Tomasz Barczyk, Kenneth Mikolajek 2017-04-25
9417273 Asynchronous AC measurement system Tomasz Barczyk, Petar Miljanic 2016-08-16
5682949 Energy management system Edward L. Ratcliffe, Anwar Chami 1997-11-04