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USPTO Patent Rankings Data through Dec 31, 2025
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Espec — 5 Patents in 2017

Rank (2017): #6,285 of 29,883Top 25%
6 inventors
5 Patents 2017

Top Inventors at Espec 2017

Showing 1–6 of 6 inventors

RankNamePatents
1 Osamu Matsuguma 3
2 Yasushi Watanabe 2
3 Junichi Inahara 1
3 Shuichi Kanazawa 1
3 Shinichirou Sakami 1
3 Tetsuya Shimada 1