How many patents does Chen Jian have in patentsdb?

Chen Jian is linked to 66 publications as assignee in our database.

What technology areas does Chen Jian patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (31); Human Necessities (13); Operations & Transport (9).

In our data, assignee counts were 5 in 2024 and 5 in 2025 (similar year over year).

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

Chen Jian holds 66 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 growing.

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	31
Human Necessities	13
Operations & Transport	9
Physics	6
Electricity	6
Cross-Sectional Technologies	5

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

How many patents does Chen Jian have in patentsdb?: Chen Jian is linked to 66 publications as assignee in our database.
What technology areas does Chen Jian patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (31); Human Necessities (13); Operations & Transport (9).
Is Chen Jian's patent activity growing?: In our data, assignee counts were 5 in 2024 and 5 in 2025 (similar year over year).
What are recent patents assigned to Chen Jian?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.