Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Gn Tool Co. — 9 Patents

Rank (All Time): #57,614 of 105,732Top 55%
2 inventors
9 Patents All Time

Patents per Year

Patents granted per year, 1981 to 2011Bar chart with a peak of 4 patents in 1993.peak 41981: 1 patents19811992: 1 patents19921993: 4 patents19931994: 1 patents19942011: 2 patents2011

Top Inventors at Gn Tool Co. All Time

Showing 1–2 of 2 inventors

RankNamePatents
1 Takayuki Nishimura 9
2 Takafumi Nishimura 2

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