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

Lac Co. — 9 Patents

Rank (All Time): #58,966 of 105,917Top 60%
18 inventors
9 Patents All Time

Patents per Year

Patents granted per year, 1990 to 2021Bar chart with a peak of 2 patents in 2018.peak 21990: 1 patents19902000: 1 patents20002014: 1 patents20142015: 1 patents20152018: 2 patents20182020: 2 patents20202021: 1 patents2021

Top Inventors at Lac Co. All Time

Showing 1–18 of 18 inventors

RankNamePatents
1 Tadashi Kaiba 4
2 Shuusei Murai 3
3 Hiroshi Fujimoto 2
#4 Atsushi Umaki 1
#4 Etsuo Goto 1
#4 Hiroshi Kawaguchi 1
#4 Hiroshi Takechi 1
#4 Hiroyuki Washio 1
#4 Ippei Shiode 1
#4 Junichi Hatta 1
#4 Kazuhide Tsuchiya 1
#4 Keigo Yamazaki 1
#4 Koji Kobayashi 1
#4 Masamichi Abe 1
#4 Masahiro Kimura 1
#4 Syusei Murai 1
#4 Tetsuya Kageyama 1
#4 Toshihide Nakama 1