How many patents does Hangzhou Zero Zero Tech Co Ltd have in patentsdb?

Hangzhou Zero Zero Tech Co Ltd is linked to 84 publications as assignee in our database.

What technology areas does Hangzhou Zero Zero Tech Co Ltd patent most?

Top mapped technology areas by patent count: Operations & Transport (79); Physics (61); Electricity (33).

In our data, assignee counts were 3 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.

Hangzhou Zero Zero Tech Co Ltd holds 84 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.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Operations & Transport	79
Physics	61
Electricity	33
Cross-Sectional Technologies	14
Mechanical Engineering	4

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

How many patents does Hangzhou Zero Zero Tech Co Ltd have in patentsdb?: Hangzhou Zero Zero Tech Co Ltd is linked to 84 publications as assignee in our database.
What technology areas does Hangzhou Zero Zero Tech Co Ltd patent most?: Top mapped technology areas by patent count: Operations & Transport (79); Physics (61); Electricity (33).
Is Hangzhou Zero Zero Tech Co Ltd's patent activity growing?: In our data, assignee counts were 3 in 2024 and 1 in 2025 (lower year over year).
What are recent patents assigned to Hangzhou Zero Zero Tech Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.