Beijing D-Ear Technologies Co., Ltd.

Calculating rank

USPTO Granted Patents = 1

EPO Patents = 1

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Xiaogang Wang (1 out of 42 patents)

Gang Wang (1 out of 363 patents)

Xiaojun Wu (1 out of 16 patents)

4. Le Liu (1 out of 4 patents)

5. Fang Zheng (1 out of 2 patents)

6. Lantian Li (1 out of 2 patents)

1 patent: Sort by Forward Citations

1. 10540980 - Dynamic security code speech-based identity authentication system and method having self-learning function (2020-01-21),

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USPTO Data Jan 1 1976 - Oct 27 2026

1 Patents

#1,318 in Beijing

#18,836 in China

Beijing, China

Beijing D-Ear Technologies Co., Ltd.

Forward Citations = 2

6 inventors:

Xiaogang Wang (1 out of 42 patents)

Gang Wang (1 out of 363 patents)

Xiaojun Wu (1 out of 16 patents)

4. Le Liu (1 out of 4 patents)

5. Fang Zheng (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Beijing D-Ear Technologies Co., Ltd.. Retrieved from https://idiyas.com/company/beijing-d-ear-technologies-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]

1 patent (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]