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USPTO Patent Rankings Data through Dec 31, 2025
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Delafield — 6 Patents

Rank (All Time): #83,798 of 106,120Top 80%
2 inventors
6 Patents All Time

Top Inventors at Delafield All Time

Showing 1–2 of 2 inventors

RankNamePatents
1 John P. Schiefelbein, Jr. 5
2 James R. Martin 1

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