Chang Jichuan patents

Chang Jichuan holds 18 patents in our database, with recent filings and technology areas summarized below.

Company patent statistics
MetricValue
Total patents18
Recent patents0
First publicationJan 13, 2015
Latest publicationNov 12, 2019

Filing trend

Year-over-year patent counts for this assignee.

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
201511
20161
20173
20181
20192
Browse patents by year
YearPatents
201511
20161
20173
20181
20192

Recent patents

Latest publications where this party is an assignee.

Notable patents

Representative or frequently cited publications from precomputed assignee stats.

Top CPC classifications

Most common classification codes in this portfolio.

Top CPC codes by patent count
CPCPatents
Y02D10/007
Y02B60/12253
G06F12/08952
Y02D10/132
G06F12/08662

Technology areas

Mapped technology topics for this assignee.

Company technology slices
TechnologyPatents
Physics15
Cross-Sectional Technologies8
Electricity4

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

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

How many patents does Chang Jichuan have in patentsdb?
Chang Jichuan is linked to 18 publications as assignee in our database.
What technology areas does Chang Jichuan patent most?
Top mapped technology areas by patent count: Physics (15); Cross-Sectional Technologies (8); Electricity (4).
Is Chang Jichuan's patent activity growing?
In our data, assignee counts were 1 in 2018 and 2 in 2019 (higher year over year).
What are recent patents assigned to Chang Jichuan?
See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.