How many patents does Dongjin Semichem Co Ltd have in patentsdb?

Dongjin Semichem Co Ltd is linked to 140 publications as assignee in our database.

What technology areas does Dongjin Semichem Co Ltd patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (121); Electricity (87); Physics (54).

In our data, assignee counts were 29 in 2024 and 10 in 2025 (lower year over year).

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

Dongjin Semichem Co Ltd holds 140 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	121
Electricity	87
Physics	54
Operations & Transport	27
Cross-Sectional Technologies	23
Fixed Constructions	1

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

How many patents does Dongjin Semichem Co Ltd have in patentsdb?: Dongjin Semichem Co Ltd is linked to 140 publications as assignee in our database.
What technology areas does Dongjin Semichem Co Ltd patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (121); Electricity (87); Physics (54).
Is Dongjin Semichem Co Ltd's patent activity growing?: In our data, assignee counts were 29 in 2024 and 10 in 2025 (lower year over year).
What are recent patents assigned to Dongjin Semichem Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.