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USPTO Patent Rankings Data through Dec 31, 2025
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Er Fluid Developments Limited — 5 Patents

Rank (All Time): #101,343 of 105,732Top 100%
1 inventors
5 Patents All Time

Patents per Year

Patents granted per year, 1987 to 2001Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871989: 1 patents19891994: 1 patents19941995: 1 patents19952001: 1 patents2001

Top Inventors at Er Fluid Developments Limited All Time

Showing 1–1 of 1 inventors

RankNamePatents
1 James E. Stangroom 5

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