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USPTO Patent Rankings Data through Dec 31, 2025
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QT

Quad Environmental Technologies — 9 Patents

Rank (All Time): #62,101 of 106,120Top 60%
2 inventors
9 Patents All Time

Top Inventors at Quad Environmental Technologies All Time

Showing 1–2 of 2 inventors

RankNamePatents
1 Egbert deVries 8
2 Harold J. Rafson 3

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