How many patents does Hitachi Construction Machinery Tierra Co Ltd have in patentsdb?

Hitachi Construction Machinery Tierra Co Ltd is linked to 118 publications as assignee in our database.

What technology areas does Hitachi Construction Machinery Tierra Co Ltd patent most?

Top mapped technology areas by patent count: Fixed Constructions (115); Mechanical Engineering (58); Operations & Transport (50).

In our data, assignee counts were 13 in 2024 and 7 in 2025 (lower year over year).

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

Hitachi Construction Machinery Tierra Co Ltd holds 118 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 rapidly 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
Fixed Constructions	115
Mechanical Engineering	58
Operations & Transport	50
Cross-Sectional Technologies	20
Physics	8
Electricity	8

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

How many patents does Hitachi Construction Machinery Tierra Co Ltd have in patentsdb?: Hitachi Construction Machinery Tierra Co Ltd is linked to 118 publications as assignee in our database.
What technology areas does Hitachi Construction Machinery Tierra Co Ltd patent most?: Top mapped technology areas by patent count: Fixed Constructions (115); Mechanical Engineering (58); Operations & Transport (50).
Is Hitachi Construction Machinery Tierra Co Ltd's patent activity growing?: In our data, assignee counts were 13 in 2024 and 7 in 2025 (lower year over year).
What are recent patents assigned to Hitachi Construction Machinery Tierra Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.