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USPTO Patent Rankings Data through Dec 31, 2025
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Filter Materials — 5 Patents

Rank (All Time): #103,662 of 106,120Top 100%
2 inventors
5 Patents All Time

Top Inventors at Filter Materials All Time

Showing 1–2 of 2 inventors

RankNamePatents
1 Michael Douglas Hill 5
2 Walter A. Nichols 4

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