How many patents does Chang Chun Petrochemical Co Ltd have in patentsdb?

Chang Chun Petrochemical Co Ltd is linked to 185 publications as assignee in our database.

What technology areas does Chang Chun Petrochemical Co Ltd patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (158); Operations & Transport (122); Cross-Sectional Technologies (74).

In our data, assignee counts were 14 in 2024 and 18 in 2025 (higher year over year).

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

Chang Chun Petrochemical Co Ltd holds 185 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	158
Operations & Transport	122
Cross-Sectional Technologies	74
Electricity	71
Physics	7
Mechanical Engineering	2

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

How many patents does Chang Chun Petrochemical Co Ltd have in patentsdb?: Chang Chun Petrochemical Co Ltd is linked to 185 publications as assignee in our database.
What technology areas does Chang Chun Petrochemical Co Ltd patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (158); Operations & Transport (122); Cross-Sectional Technologies (74).
Is Chang Chun Petrochemical Co Ltd's patent activity growing?: In our data, assignee counts were 14 in 2024 and 18 in 2025 (higher year over year).
What are recent patents assigned to Chang Chun Petrochemical Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.