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USPTO Patent Rankings Data through Dec 31, 2025
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Duplo Seiko — 1 Patent in 2021

Rank (2021): #28,159 of 31,441Top 90%
4 inventors
1 Patents 2021

Top Inventors at Duplo Seiko 2021

Showing 1–4 of 4 inventors

RankNamePatents
1 Hideki Oiwa 1
1 Masayasu Matsumoto 1
1 Takuya Tashiro 1
1 Yasuhiro Tanaka 1