% Expired Patents = 100.0

Forward Citations = 9

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2 inventors (with patents filed for the assignee):

Jianguang Chang (1 out of 5 patents)

Yew Hoong Phang (1 out of 3 patents)

1 patent: Sort by Forward Citations

1. 7029375 - Retaining ring structure for edge control during chemical-mechanical polishing (2006-04-18),

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USPTO Data Jan 1 1976 - Oct 6 2026

1 Patents

#875 in Singapore

#877 in Singapore

Singapore, Singapore

Tech Semiconductor Pte. Ltd.

Forward Citations = 9

2 inventors:

Jianguang Chang (1 out of 5 patents)

Yew Hoong Phang (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tech Semiconductor Pte. Ltd.. Retrieved from https://idiyas.com/company/tech-semiconductor

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

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