How many patents does Du Guocheng have in patentsdb?

Du Guocheng is linked to 26 publications as assignee in our database.

What technology areas does Du Guocheng patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (24); Human Necessities (8); Cross-Sectional Technologies (2).

In our data, assignee counts were 1 in 2019 and 2 in 2020 (higher year over year).

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

Du Guocheng holds 26 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 rapidly 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	24
Human Necessities	8
Cross-Sectional Technologies	2

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

How many patents does Du Guocheng have in patentsdb?: Du Guocheng is linked to 26 publications as assignee in our database.
What technology areas does Du Guocheng patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (24); Human Necessities (8); Cross-Sectional Technologies (2).
Is Du Guocheng's patent activity growing?: In our data, assignee counts were 1 in 2019 and 2 in 2020 (higher year over year).
What are recent patents assigned to Du Guocheng?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.