How many patents does Dairen Chemical Corp have in patentsdb?

Dairen Chemical Corp is linked to 24 publications as assignee in our database.

What technology areas does Dairen Chemical Corp patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (23); Operations & Transport (9); Cross-Sectional Technologies (6).

In our data, assignee counts were 4 in 2024 and 3 in 2025 (lower year over year).

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

Dairen Chemical Corp holds 24 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.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	23
Operations & Transport	9
Cross-Sectional Technologies	6
Electricity	3

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

How many patents does Dairen Chemical Corp have in patentsdb?: Dairen Chemical Corp is linked to 24 publications as assignee in our database.
What technology areas does Dairen Chemical Corp patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (23); Operations & Transport (9); Cross-Sectional Technologies (6).
Is Dairen Chemical Corp's patent activity growing?: In our data, assignee counts were 4 in 2024 and 3 in 2025 (lower year over year).
What are recent patents assigned to Dairen Chemical Corp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.