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Dealfeng obtained the first patent on wind assisted propulsion of rotor sail system

2019-01-02 00:00

On January 2, 2019, Dealfeng obtained the first patent on wind assisted propulsion of rotor sail system called "a kind of ship wind propulsion and energy-saving system". At present, Dealfeng has gained one invention patent and more than 40 utility model patents related to rotor sail, and many other invention patents are under review.

 

 

 

 

 

 

 

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Time of issue:2022-09-15 11:52:29

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