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Yunshui CHEN Xuming FANG Kai HAN Yaguo MA

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AIRSYS Refrigeration Engineering Technology (Beijing) Co. Ltd.

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Heat Recovery Device and Air Conditioning System

17/37,723 | U.S. Patent Application

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Filed Sept. 30, 2020

Examiner Joseph F Trpisovsky

Class 62

Art Group 3763

Patent No. 11,668,474

Case Type Utility

Status Patented Case

Last Updated: 2 weeks, 5 days ago

Date	#	Transaction
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Heat Recovery Device and Air Conditioning System

17/37,723 | U.S. Patent Application

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