Beijing Rostar Technology Co. Ltd.

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USPTO Granted Patents = 4

EPO Patents = 2

Forward Citations = 5

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3 inventors (with patents filed for the assignee):

Qihuai Yao (4 out of 4 patents)

Frank Yao (3 out of 3 patents)

Zhen Yao (1 out of 4 patents)

4 patents: Sort by Forward Citations

1. 11111918 - Rotary device, rotary system, and fluid machinery, to which press-actuated gate valve mechanism is applied (2021-09-07),

2. 10215025 - Rotation device and rotor compressor and fluid motor having the same (2019-02-26),

3. 9322272 - Planetary rotary type fluid motor or engine and compressor or pump (2016-04-26),

4. 9017440 - Vortex device for separating cold gas and hot gas (2015-04-28),

Company Overview

Beijing Rostar Technology Co. Ltd. is a leading provider of innovative IT solutions in China. With a strong focus on research and development, the company offers a wide range of products and services to meet the needs of clients in various industries. Rostar's team of experienced professionals is dedicated to delivering high-quality solutions that drive business success.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#559 in Beijing

#6,444 in China

Beijing, China

Beijing Rostar Technology Co. Ltd.

Forward Citations = 5

3 inventors:

Qihuai Yao (4 out of 4 patents)

Frank Yao (3 out of 3 patents)

Zhen Yao (1 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Beijing Rostar Technology Co. Ltd.. Retrieved from https://idiyas.com/company/beijing-rostar-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]

2 patents (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]