How many patents does Sumitomo Heavy Industries have in patentsdb?

Sumitomo Heavy Industries is linked to 1,396 publications as assignee in our database.

What technology areas does Sumitomo Heavy Industries patent most?

Top mapped technology areas by patent count: Mechanical Engineering (569); Operations & Transport (492); Physics (346).

In our data, assignee counts were 181 in 2024 and 176 in 2025 (lower year over year).

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

Sumitomo Heavy Industries holds 1,396 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 growing.

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
Mechanical Engineering	569
Operations & Transport	492
Physics	346
Electricity	337
Fixed Constructions	298
Cross-Sectional Technologies	120
Human Necessities	93
Chemistry & Metallurgy	51

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

How many patents does Sumitomo Heavy Industries have in patentsdb?: Sumitomo Heavy Industries is linked to 1,396 publications as assignee in our database.
What technology areas does Sumitomo Heavy Industries patent most?: Top mapped technology areas by patent count: Mechanical Engineering (569); Operations & Transport (492); Physics (346).
Is Sumitomo Heavy Industries's patent activity growing?: In our data, assignee counts were 181 in 2024 and 176 in 2025 (lower year over year).
What are recent patents assigned to Sumitomo Heavy Industries?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.