Trademarks = 2

Forward Citations = 2

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8 inventors (with patents filed for the assignee):

Qiqi Wang (5 out of 5 patents)

Lei Liao (4 out of 6 patents)

Wang Xiao (3 out of 3 patents)

4. Yi Cui (2 out of 103 patents)

5. Mervin Zhao (2 out of 2 patents)

6. Haotian Wang (2 out of 2 patents)

7. Baoqiong Guan (1 out of 1 patent)

8. Yang Qin (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 12410315 - Biodegradable air filtering film and method for manufacturing same (2025-09-09),

2. D983460 - Transparent face mask (2023-04-11),

3. 11274380 - Nozzle plate for fiber formation (2022-03-15),

4. 11203190 - Breathable film and method for manufacturing same (2021-12-21),

5. 11124898 - Method of making bicomponent or multicomponent fibers (2021-09-21),

6. 10926208 - Nanofiber web with controllable solid volume fraction (2021-02-23),

Company Overview

4c Air, Inc. is a leading aerospace manufacturer specializing in aircraft engine components. With a strong commitment to quality and innovation, 4c Air has established itself as a trusted partner for airlines and aircraft manufacturers around the world. Our precision-engineered products improve performance and efficiency, setting new standards in the industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#431 in Sunnyvale, CA

#10,570 in California

#44,981 in US

Sunnyvale, CA, United States of America

4C Air, Inc.

Forward Citations = 2

8 inventors:

Qiqi Wang (5 out of 5 patents)

Lei Liao (4 out of 6 patents)

Wang Xiao (3 out of 3 patents)

4. Yi Cui (2 out of 103 patents)

5. Mervin Zhao (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: 4C Air, Inc.. Retrieved from https://idiyas.com/company/4c-air

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]