This inventor holds 4 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Groundhog Inc., Groundhog Technologies Inc., Other. Active years: 2013-2021.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Hsiao-Tse Chang. Retrieved from https://idiyas.com/inventor/hsiao-tse-chang
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
USPTO Granted Patents = 4 (Patent Applications = 1)
% Patents Active = 100.0
EPO Patents = 1 (Patent Applications = 2)
Average Co-Inventor Count = 2.4
ph-index = 1
Forward Citations = 1(Granted Patents)
Company Filing History:
1 out of 7 
Groundhog Inc.
1 out of 9 
Groundhog Technologies Inc.
2 out of 834,453 Other
Years Active: 2013-2021
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4 patents (USPTO):Explore Patents
Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
1 patent pending:
IDiyas Innovation Intelligence. (2026). Inventor Profile: Hsiao-Tse Chang. Retrieved from https://idiyas.com/inventor/hsiao-tse-chang
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
1 patent (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
2 patents pending (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]