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

Mariko Ishii — 5 Patents

MEMecta: 4 patents #13 of 74Top 20%
ADAdeka: 1 patents #257 of 499Top 55%
Tokyo, JP: #26,440 of 90,295 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Mariko Ishii has been granted 5 US patents while listed as an inventor at Mecta. The first was granted in 1995 and the most recent in May 2020. Mariko Ishii ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Mariko Ishii in Tokyo, JP.

Patents per Year

Patents granted per year, 1995 to 2020Bar chart with a peak of 1 patents in 1995.peak 11995: 1 patents19951996: 1 patents19961997: 1 patents19971998: 1 patents19982020: 1 patents2020

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10654990 Thermal stabilizer composition and synthetic resin composition comprising same Yoshinori Negishi, Yasuhiro Honma, Masaki Segawa, Yuto ISHIZUKA 2020-05-19
5763420 Method for modulating the immune system Ryoichi Osawa, Isao Suda, Masaaki Numata, Mamoru Sugimoto, Kenkichi Tomita +7 more 1998-06-09
5668115 Methods for inhibiting the chemotaxis of neutrophils Ryoichi Osawa, Isao Suda, Masaaki Numata, Mamoru Sugimoto, Kenkichi Tomita +7 more 1997-09-16
5516764 Anti-inflammatory agent Ryoichi Osawa, Isao Suda, Masaaki Numata, Mamoru Sugimoto, Kenkichi Tomita +7 more 1996-05-14
5393742 Preparation for treating renal disease Takayuki Ishii, Makiko Kasano, Tae Yasunaga, Mamoru Sugimoto, Kenkichi Tomita +2 more 1995-02-28