Chan Wai Keung (2 out of 3 patents)
William Chung (1 out of 1 patent)
Company Badge
USPTO Data Jan 1 1976 - Oct 13 2026
3 Patents
#935 in Hong Kong
#8,337 in China
Dialfone, Ltd.
Forward Citations = 17
2 inventors:
Dialfone, Ltd.
Forward Citations = 17
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2 inventors (with patents filed for the assignee):
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dialfone, Ltd.. Retrieved from https://idiyas.com/company/dialfone
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]