How many patents does Sumitomo Seika Chemicals have in patentsdb?

Sumitomo Seika Chemicals is linked to 492 publications as assignee in our database.

What technology areas does Sumitomo Seika Chemicals patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (402); Human Necessities (193); Operations & Transport (185).

In our data, assignee counts were 36 in 2024 and 36 in 2025 (similar year over year).

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

Sumitomo Seika Chemicals holds 492 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 stable.

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	402
Human Necessities	193
Operations & Transport	185
Electricity	123
Cross-Sectional Technologies	79
Physics	18
Textiles & Paper	10
Mechanical Engineering	9
Fixed Constructions	5

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

How many patents does Sumitomo Seika Chemicals have in patentsdb?: Sumitomo Seika Chemicals is linked to 492 publications as assignee in our database.
What technology areas does Sumitomo Seika Chemicals patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (402); Human Necessities (193); Operations & Transport (185).
Is Sumitomo Seika Chemicals's patent activity growing?: In our data, assignee counts were 36 in 2024 and 36 in 2025 (similar year over year).
What are recent patents assigned to Sumitomo Seika Chemicals?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.