4C Air, Inc.
6Patents
6Active
6Granted
43Portfolio score
Filing activity: Aug 30, 2018 → Dec 10, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD983460S1 | Transparent face mask | General | 2 | Active |
| US11124898B2 | Method of making bicomponent or multicomponent fibers | Textiles; Paper | 0 | Active |
| US12410315B2 | Biodegradable air filtering film and method for manufacturing same | Performing Operations; Transporting | 0 | Active |
| US10926208B2 | Nanofiber web with controllable solid volume fraction | Textiles; Paper | 0 | Active |
| US11203190B2 | Breathable film and method for manufacturing same | Performing Operations; Transporting | 0 | Active |
| US11274380B2 | Nozzle plate for fiber formation | Textiles; Paper | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.