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

Chang Chun Plastics Co Ltd is linked to 144 publications as assignee in our database.

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

Top mapped technology areas by patent count: Chemistry & Metallurgy (133); Operations & Transport (53); Electricity (23).

In our data, assignee counts were 19 in 2024 and 14 in 2025 (lower year over year).

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

Chang Chun Plastics Co Ltd holds 144 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.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	133
Operations & Transport	53
Electricity	23
Cross-Sectional Technologies	19
Physics	17
Textiles & Paper	2

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

How many patents does Chang Chun Plastics Co Ltd have in patentsdb?: Chang Chun Plastics Co Ltd is linked to 144 publications as assignee in our database.
What technology areas does Chang Chun Plastics Co Ltd patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (133); Operations & Transport (53); Electricity (23).
Is Chang Chun Plastics Co Ltd's patent activity growing?: In our data, assignee counts were 19 in 2024 and 14 in 2025 (lower year over year).
What are recent patents assigned to Chang Chun Plastics Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.