% Expired Patents = 33.3

Forward Citations = 54

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9 inventors (with patents filed for the assignee):

Chieh-Jen Wu (2 out of 2 patents)

Hsin Lu (1 out of 11 patents)

Ying-Chang Liu (1 out of 1 patent)

4. Chio Hao Hsu (1 out of 1 patent)

5. Chien Lung Weng (1 out of 1 patent)

6. I Chiao Lin (1 out of 1 patent)

7. Philip Chaw (1 out of 1 patent)

8. Danis Huang (1 out of 1 patent)

9. Wen-Tsung Chang (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 7394378 - Electronic tagged box (2008-07-01),

2. 6805945 - Waterproof heat-preservative film and manufacture method thereof (2004-10-19),

3. 6793908 - Method for preparing ITO nanometer powders (2004-09-21),

4. 6619049 - Method for manufacturing temperature-maintaining material (2003-09-16),

5. 6079337 - Supporting structure (2000-06-27),

6. 5784971 - Pallet structure improvement (1998-07-28),

Company Overview

Cheng Loong Corporation is a leading paper manufacturer based in Taiwan. With over 60 years of experience, Cheng Loong has built a reputation for producing high-quality paper products for various industries including packaging, printing, and stationery. The company is committed to sustainability and innovation in its production processes to meet the evolving needs of its customers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#668 in Taipei

#2,095 in Taiwan

Taipei, Taiwan

Cheng Loong Corporation

Forward Citations = 54

9 inventors:

Chieh-Jen Wu (2 out of 2 patents)

Hsin Lu (1 out of 11 patents)

Ying-Chang Liu (1 out of 1 patent)

4. Chio Hao Hsu (1 out of 1 patent)

5. Chien Lung Weng (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cheng Loong Corporation. Retrieved from https://idiyas.com/company/cheng-loong

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]