How many patents does Cnpc Chuanqing Drilling Eng Co have in patentsdb?

Cnpc Chuanqing Drilling Eng Co is linked to 13 publications as assignee in our database.

What technology areas does Cnpc Chuanqing Drilling Eng Co patent most?

Top mapped technology areas by patent count: Fixed Constructions (6); Chemistry & Metallurgy (4); Physics (3).

In our data, assignee counts were 2 in 2024 and 1 in 2025 (lower year over year).

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

Cnpc Chuanqing Drilling Eng Co holds 13 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.

Mapped technology topics for this assignee.

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

How many patents does Cnpc Chuanqing Drilling Eng Co have in patentsdb?: Cnpc Chuanqing Drilling Eng Co is linked to 13 publications as assignee in our database.
What technology areas does Cnpc Chuanqing Drilling Eng Co patent most?: Top mapped technology areas by patent count: Fixed Constructions (6); Chemistry & Metallurgy (4); Physics (3).
Is Cnpc Chuanqing Drilling Eng Co's patent activity growing?: In our data, assignee counts were 2 in 2024 and 1 in 2025 (lower year over year).
What are recent patents assigned to Cnpc Chuanqing Drilling Eng Co?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.