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USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#1,196 in Hong Kong
#11,632 in China
Purapharm Company Limited
Forward Citations = 1
4 inventors:
Purapharm Company Limited
EPO Patents = 1
Forward Citations = 1
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4 inventors (with patents filed for the assignee):
Lai Hung Cindy Yang (2 out of 7 patents)
Allan Sy Lau (2 out of 3 patents)
Chi Chung Stanley Chik (1 out of 2 patents)
4. Chun Bong James Li (1 out of 2 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Purapharm Company Limited. Retrieved from https://idiyas.com/company/purapharm-company
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]
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]