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USPTO Patent Rankings Data through Sept 30, 2025
RI

Ritchie Industries

Rank (1989): #7,499 of 11,124Top 70%
2 inventors
1 Patents 1989

Top Inventors at Ritchie Industries 1989

Showing 1–2 of 2 inventors

RankNamePatents
1 Leland G. Wiseman 1
1 Daryl Hertema 1