Hwang Chih-Chau patents

Hwang Chih-Chau holds 7 patents in our database, with recent filings and technology areas summarized below.

Company patent statistics
MetricValue
Total patents7
Recent patents0
First publicationJan 22, 2015
Latest publicationOct 3, 2017

Filing trend

Year-over-year patent counts for this assignee.

Filing activity appears stable based on the most recent years.

Patents filed per year
YearPatents
20153
20162
20172
Browse patents by year
YearPatents
20153
20162
20172

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
B01J20/206
Y02C20/406
B01D2257/5045
B01D2253/1025
B01J20/280665

Technology areas

Mapped technology topics for this assignee.

Frequently asked questions

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

How many patents does Hwang Chih-Chau have in patentsdb?
Hwang Chih-Chau is linked to 7 publications as assignee in our database.
What technology areas does Hwang Chih-Chau patent most?
Top mapped technology areas by patent count: Operations & Transport (6); Cross-Sectional Technologies (6); Chemistry & Metallurgy (5).
Is Hwang Chih-Chau's patent activity growing?
In our data, assignee counts were 2 in 2016 and 2 in 2017 (similar year over year).
What are recent patents assigned to Hwang Chih-Chau?
See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.