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

Union Tool — 14 Patents

Rank (All Time): #40,163 of 106,120Top 40%
25 inventors
14 Patents All Time

Top Inventors at Union Tool All Time

Showing 1–25 of 25 inventors

RankNamePatents
1 Ichiro Katayama 4
1 Shoichi Takahashi 4
3 Hidehito Watanabe 3
#4 Hideki Osaki 2
#4 Hideo Wakui 2
#4 Ryo SHINOZAKI 2
#4 Shuntaro Suzuki 2
#4 Yoshiharu Shinbo 2
#9 Akira Sato 1
#9 Hironobu Saito 1
#9 Kazutaka Sato 1
#9 Masanori Kakuda 1
#9 Mariko Matsui 1
#9 Makoto Matsunaga 1
#9 Madoka Nitta 1
#9 Munehiro Nakamura 1
#9 Naoki Jinbo 1
#9 Nozomu Sato 1
#9 Paul Quillen 1
#9 Sonoko Ishimaru 1
#9 Taishi Matsui 1
#9 Tetsutaro Ohori 1
#9 Yoshinobu Watanabe 1
#9 Yuichi Nakajima 1
#9 Yuji Watanabe 1