Gemmytec (Shanghai) Co., Ltd.

Calculating rank

USPTO Granted Patents = 3

% Expired Patents = 33.3

EPO Patents = 1

Trademarks = 2

Forward Citations = 14

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3 inventors (with patents filed for the assignee):

Nan Sun (2 out of 4 patents)

Zhiqiang Yang (2 out of 2 patents)

Chaoyang Jia (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. D966479 - Liquid dispenser (2022-10-11),

2. D965757 - Liquid dispenser (2022-10-04),

3. 11084053 - Portable pump by which liquid may be horizontally pressed out (2021-08-10),

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USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#660 in Shanghai

#8,400 in China

Shanghai, China

Gemmytec (Shanghai) Co., Ltd.

Forward Citations = 14

3 inventors:

Nan Sun (2 out of 4 patents)

Zhiqiang Yang (2 out of 2 patents)

Chaoyang Jia (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gemmytec (Shanghai) Co., Ltd.. Retrieved from https://idiyas.com/company/gemmytec-shanghai-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]