Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Axial fan with double impellers rotating in mutually opposite directions

Axial fan with double impellers rotating in mutually opposite directions

US Patent D516693 · Granted Mar 7, 2006

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Axial fan having control board cover with windows at top surface and side periph2025
Measurement device for measuring airflow volume and a ventilation resistance and2018
Measurement device having variable opening orifice for measuring airflow volume 2018
Waterproof axial flow fan2018
Measurement device for measuring airflow volume and ventilation resistance of wi2018
Assembly method of an inline type fan motor2017
Inline axial flow fan2016
Counter-rotating axial flow fan2016
Counter-rotating axial flow fan2014
Counter-rotating axial flow fan2014
Axial flow fan2014
Counter-rotating axial flow fan2014