Forward Citations = 0

Loading Chart...

6 inventors (with patents filed for the assignee):

Dan Chen (1 out of 1 patent)

Liping Chen (1 out of 1 patent)

Guogang Ying (1 out of 1 patent)

4. Hanhua Zhu (1 out of 2 patents)

5. Jiayuan He (1 out of 1 patent)

6. Yapeng Xing (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 12467360 - Device and method for adjusting tunnel support force (2025-11-11),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

1 Patents

#469 in Zhejiang

#18,808 in China

Zhejiang, China

Ningbo Langda Engineering Technology Co., Ltd.

Forward Citations = 0

6 inventors:

Dan Chen (1 out of 1 patent)

Liping Chen (1 out of 1 patent)

Guogang Ying (1 out of 1 patent)

4. Hanhua Zhu (1 out of 2 patents)

5. Jiayuan He (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ningbo Langda Engineering Technology Co., Ltd.. Retrieved from https://idiyas.com/company/ningbo-langda-engineering-technology-company

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]