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Chang Chieh patents

Chang Chieh holds 1 patent in our database, with recent filings and technology areas summarized below.

Company patent statistics
MetricValue
Total patents1
Recent patents0
First publicationNov 20, 2018
Latest publicationNov 20, 2018

Filing trend

Year-over-year patent counts for this assignee.

Not enough yearly data to assess filing trend yet.

Patents filed per year
YearPatents
20181
Browse patents by year
YearPatents
20181

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
C12N15/101
C12N15/661
C12N15/10271

Technology areas

Mapped technology topics for this assignee.

Company technology slices
TechnologyPatents
Chemistry & Metallurgy1