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

Daicel-Hãƒâ¼Ls — 18 Patents

Rank (All Time): #32,430 of 105,732Top 35%
9 inventors
18 Patents All Time

Patents per Year

Patents granted per year, 1990 to 2004Bar chart with a peak of 3 patents in 1999.peak 31990: 1 patents19901991: 1 patents1992: 2 patents19921993: 2 patents1994: 2 patents19941995: 1 patents1999: 3 patents19992000: 2 patents2002: 1 patents20022003: 1 patents2004: 2 patents2004

Top Inventors at Daicel-Hãƒâ¼Ls All Time

Showing 1–9 of 9 inventors

RankNamePatents
1 Toru Ikuta 5
2 Hiroaki Arita 4
2 Masami Kita 4
#4 Hajime Suzuki 3
#5 Haruo Ichikawa 2
#5 Kotaro Shiozaki 2
#5 Mitsuteru Mutsuda 2
#5 Yoshiyuki Ikemoto 2
#9 Hiroshi Sagane 1