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USPTO Patent Rankings Data through Sept 30, 2025
RI

Research Instruments — 1 Patent in 2019

Rank (2019): #23,212 of 32,327Top 75%
1 inventors
1 Patents 2019

Top Inventors at Research Instruments 2019

Showing 1–1 of 1 inventors

RankNamePatents
1 David Charles Lansdowne 1