Forward Citations = 0

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5 inventors (with patents filed for the assignee):

Yeuk Tin Lau (1 out of 2 patents)

Sik Chun Johnny Lo (1 out of 1 patent)

Yuyan Song (1 out of 1 patent)

4. Siu Lung Yu (1 out of 1 patent)

5. Sui Han Sin (1 out of 1 patent)

1 patent: Sort by Forward Citations

#1,842 in Hong Kong

#18,742 in HK

Ysl & C Limited

Forward Citations = 0

5 inventors:

Yeuk Tin Lau (1 out of 2 patents)

Sik Chun Johnny Lo (1 out of 1 patent)

Yuyan Song (1 out of 1 patent)

4. Siu Lung Yu (1 out of 1 patent)

5. Sui Han Sin (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ysl & C Limited. Retrieved from https://idiyas.com/company/ysl-and-c

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]