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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#746 in Hsinchu
#6,131 in Taiwan
Spirox Corporation/national
Forward Citations = 12
5 inventors:
Spirox Corporation/national
% Expired Patents = 100.0
Forward Citations = 12
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5 inventors (with patents filed for the assignee):
Chih-Tsun Huang (1 out of 9 patents)
Cheng-Wen Wu (1 out of 15 patents)
Sau-Kwo Chiu (1 out of 1 patent)
4. Jen-Chieh Yeh (1 out of 1 patent)
5. Kuo-Liang Cheng (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Spirox Corporation/national. Retrieved from https://idiyas.com/company/spirox-national
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]