How many patents does Sekisui Chemical Co Ltd have in patentsdb?

Sekisui Chemical Co Ltd is linked to 1,656 publications as assignee in our database.

What technology areas does Sekisui Chemical Co Ltd patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (1,192); Operations & Transport (989); Electricity (453).

In our data, assignee counts were 146 in 2024 and 131 in 2025 (lower year over year).

See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.

Sekisui Chemical Co Ltd holds 1,656 patents in our database, with recent filings and technology areas summarized below.

Year-over-year patent counts for this assignee.

Filing activity over the last five years is declining.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	1,192
Operations & Transport	989
Electricity	453
Cross-Sectional Technologies	451
Physics	266
Mechanical Engineering	96
Human Necessities	64
Fixed Constructions	53
Textiles & Paper	21

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Answers are generated from the same data shown on this page.

How many patents does Sekisui Chemical Co Ltd have in patentsdb?: Sekisui Chemical Co Ltd is linked to 1,656 publications as assignee in our database.
What technology areas does Sekisui Chemical Co Ltd patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (1,192); Operations & Transport (989); Electricity (453).
Is Sekisui Chemical Co Ltd's patent activity growing?: In our data, assignee counts were 146 in 2024 and 131 in 2025 (lower year over year).
What are recent patents assigned to Sekisui Chemical Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.