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For the Inventor, By the Inventor

Hong Kong, China

Ka Shing Wu

This inventor holds 6 USPTO granted patents. Top assignees: Addway Engineering Limited, Chiaphua Industries Limited. Active years: 1999-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ka Shing Wu. Retrieved from https://idiyas.com/inventor/ka-shing-wu

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 6

% Patents Active = 66.7

Average Co-Inventor Count = 1.0

ph-index = 6

Forward Citations = 295(Granted Patents)


Company Filing History:

goldMedal4 out of 7 
 
Addway Engineering Limited
 patents
silverMedal2 out of 26 
 
Chiaphua Industries Limited
 patents

Years Active: 1999-2012

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6 patents (USPTO):Explore Patents
1. 8177966 - UV liquid storage and dispensing device (2012-05-15),
2. 8128820 - UV liquid storage and dispensing device (2012-03-06),
3. 6453498 - Electric toothbrush (2002-09-24),
4. 6182321 - Toothbrush (2001-02-06),
5. 6047429 - Toothbrush with water jet (2000-04-11),
6. 5931170 - Dental flosser (1999-08-03),

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Profile summary based on public USPTO records.
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]
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