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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
TC

Tfk Co. — 5 Patents

Rank (All Time): #96,225 of 105,732Top 95%
8 inventors
5 Patents All Time

Patents per Year

Patents granted per year, 1986 to 2017Bar chart with a peak of 1 patents in 1986.peak 11986: 1 patents19861988: 1 patents19881991: 1 patents19912008: 1 patents20082017: 1 patents2017

Top Inventors at Tfk Co. All Time

Showing 1–8 of 8 inventors

RankNamePatents
1 Nobuhiro Toda 2
1 Theodore F. Korenowski 2
3 Martine E. Desrousseaux 1
3 Masaaki Ishikawa 1
3 Sachio Yoshimoto 1
3 Shuichi Kanno 1
3 Yasuhiro Hidaka 1
3 Yukizo Kudo 1