How many patents does Sumitomo Chemical Co have in patentsdb?

Sumitomo Chemical Co is linked to 4,298 publications as assignee in our database.

What technology areas does Sumitomo Chemical Co patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (2,950); Electricity (1,883); Cross-Sectional Technologies (1,194).

In our data, assignee counts were 306 in 2024 and 207 in 2025 (lower year over year).

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

Sumitomo Chemical Co holds 4,298 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	2,950
Electricity	1,883
Cross-Sectional Technologies	1,194
Operations & Transport	1,007
Physics	935
Human Necessities	811
Mechanical Engineering	72
Textiles & Paper	14
Fixed Constructions	11

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

How many patents does Sumitomo Chemical Co have in patentsdb?: Sumitomo Chemical Co is linked to 4,298 publications as assignee in our database.
What technology areas does Sumitomo Chemical Co patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (2,950); Electricity (1,883); Cross-Sectional Technologies (1,194).
Is Sumitomo Chemical Co's patent activity growing?: In our data, assignee counts were 306 in 2024 and 207 in 2025 (lower year over year).
What are recent patents assigned to Sumitomo Chemical Co?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.