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

Union Chemicar Co. — 7 Patents

Rank (All Time): #70,735 of 105,732Top 70%
16 inventors
7 Patents All Time

Patents per Year

Patents granted per year, 1990 to 2024Bar chart with a peak of 2 patents in 1996.peak 21990: 1 patents19901996: 2 patents19961997: 1 patents19971998: 1 patents19982012: 1 patents20122024: 1 patents2024

Top Inventors at Union Chemicar Co. All Time

Showing 1–16 of 16 inventors

RankNamePatents
1 Shigeru Otomo 2
2 Haruyasu Irie 1
2 Hideyoshi Morinaga 1
2 Hideyuki Uemura 1
2 Ichiro Miyamoto 1
2 Kazui Nagata 1
2 Kazuhiko Yamamoto 1
2 Kenichi Seguchi 1
2 Masahiro Ichinose 1
2 Masayoshi Iwasaki 1
2 Masayuki Matsubara 1
2 Misao Nakamura 1
2 Takehiko Nishibuchi 1
2 Tomoaki Kawahara 1
2 Yoshio Kunitomi 1
2 Yoshitsune Nagai 1