How many patents does China Energy Investment Corp Ltd have in patentsdb?

China Energy Investment Corp Ltd is linked to 91 publications as assignee in our database.

What technology areas does China Energy Investment Corp Ltd patent most?

Top mapped technology areas by patent count: Cross-Sectional Technologies (64); Chemistry & Metallurgy (46); Operations & Transport (44).

In our data, assignee counts were 14 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.

China Energy Investment Corp Ltd holds 91 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
Cross-Sectional Technologies	64
Chemistry & Metallurgy	46
Operations & Transport	44
Electricity	31
Mechanical Engineering	27
Physics	6

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

How many patents does China Energy Investment Corp Ltd have in patentsdb?: China Energy Investment Corp Ltd is linked to 91 publications as assignee in our database.
What technology areas does China Energy Investment Corp Ltd patent most?: Top mapped technology areas by patent count: Cross-Sectional Technologies (64); Chemistry & Metallurgy (46); Operations & Transport (44).
Is China Energy Investment Corp Ltd's patent activity growing?: In our data, assignee counts were 14 in 2024 and 7 in 2025 (lower year over year).
What are recent patents assigned to China Energy Investment Corp Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.