Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
10 Patents
#53 in Suzhou
#2,795 in China
#55,986 in the World
Dongnan Elevator Co, Ltd
Forward Citations = 12
36 inventors:
Dongnan Elevator Co, Ltd
% Expired Patents = 40.0
Forward Citations = 12
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36 inventors (with patents filed for the assignee):
Jiancong Qin (10 out of 13 patents)
Zhencai Zhu (8 out of 89 patents)
Guohua Cao (8 out of 54 patents)
4. Yiping Ma (6 out of 8 patents)
5. Gongbo Zhou (5 out of 60 patents)
6. Guoan Chen (5 out of 10 patents)
7. Hongqiao Kang (5 out of 7 patents)
8. Renyuan Wu (5 out of 6 patents)
9. Jianrong Yang (5 out of 7 patents)
10. Weihong Peng (4 out of 14 patents)
11. Lingyun Ma (3 out of 5 patents)
12. Wei Li (3 out of 20 patents)
13. Lei Wei (2 out of 8 patents)
14. Chongqiu Wang (2 out of 2 patents)
15. Yilei Li (2 out of 2 patents)
10 patents:
Company Overview
Dongnan Elevator Co, Ltd is a prominent manufacturer based in Suzhou, China, specializing in the design and production of elevators and escalators. The company focuses on innovative solutions that enhance vertical transportation efficiency and safety in various environments, including residential, commercial, and industrial sectors. With a commitment to quality and technological advancement, Dongnan Elevator aims to meet the evolving needs of urban infrastructure and contribute to smart city developments.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dongnan Elevator Co, Ltd. Retrieved from https://idiyas.com/company/dongnan-elevator-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]
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]
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]