Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Chemical Grouting Co. — 14 Patents

Rank (All Time): #40,392 of 106,127Top 40%
28 inventors
14 Patents All Time

Top Inventors at Chemical Grouting Co. All Time

Showing 1–28 of 28 inventors

RankNamePatents
1 Mitsuhiro Shibazaki 8
2 Hiroshi Yoshida 6
3 Hiroaki Kubo 5
#4 Shunji Jinbo 3
#5 Isao Yamaki 2
#5 Kaoru Ishizuka 2
#5 Masahiro Iji 2
#5 Masami Yoda 2
#5 Mitsuhiro Shibasaki 2
#5 Shin-ichi Suzuki 2
#5 Sotoo Kubo 2
#5 Toshikuni Hashimoto 2
#5 Tsutao Takahashi 2
#5 Tsutomu Tsuchiya 2
#15 Hiroyuki Abe 1
#15 Hiroshi Miyazaki 1
#15 Hiroshi Soma 1
#15 Masanori Kumekawa 1
#15 Masahiro Yoshihara 1
#15 Takeru Ariizumi 1
#15 Takanori Tsutaoka 1
#15 Tetsuo Nakamura 1
#15 Toshio Imai 1
#15 Toshitsugu Jinbo 1
#15 Yuichi Tachiwada 1
#15 Hiroshi Kotacki 1
#15 Hachiro Hatakeda 1
#15 Akira Mori 1