Sdi Corporation, based in Changhua, Taiwan, specializes in the development and manufacturing of innovative writing tools. The company focuses on a diverse range of products, including dual-mode staplers, electric pencil sharpeners, and various dispensing devices. Sdi Corporation is committed to enhancing user experience through advanced technology in office supplies, ensuring quality and functionality in everyday writing instruments. Their expertise extends to precision components like cutter assemblies and pressure regulating devices, positioning them as a key player in the writing tools sector.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

62 Patents

#7 in Changhua

#343 in Taiwan

#11,779 in the World

Changhua, Taiwan

Sdi Corporation

Forward Citations = 423

29 inventors:

Chien-Lung Wu (13 out of 13 patents)

Joshua James Cheetham (10 out of 24 patents)

Szu-Yu Chen (10 out of 10 patents)

4. Jau-Shyong Chen (8 out of 8 patents)

5. Cheng-Yu Pai (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sdi Corporation. Retrieved from https://idiyas.com/company/sdi

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]

1 patent (CIPO):

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]

33 patents (EPO):

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]