W. Haking Industries, Ltd.

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USPTO Granted Patents = 3

Forward Citations = 58

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2 inventors (with patents filed for the assignee):

Kwok Yan Chan (3 out of 12 patents)

Norman Wah Ko (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4041507 - Camera for underwater and above water use (1977-08-09),

2. 4032940 - Retractable camera (1977-06-28),

3. 4014033 - Percussive flash unit operating mechanism (1977-03-22),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#937 in Hong Kong

#8,379 in China

Hong Kong, China

W. Haking Industries, Ltd.

Forward Citations = 58

2 inventors:

Kwok Yan Chan (3 out of 12 patents)

Norman Wah Ko (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: W. Haking Industries, Ltd.. Retrieved from https://idiyas.com/company/w-haking-industries

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]