Group 1 - Xiaomi Technology (Wuhan) Co., Ltd., Xiaomi Smart Home Appliances (Wuhan) Co., Ltd., and Beijing Xiaomi Mobile Software Co., Ltd. have obtained a patent for "Return Air Cover and Air Conditioning Equipment" with the announcement number CN223243009U, applied on October 2024 [1] - The patent describes a return air cover that includes a cover body, at least two first connecting pieces, and at least one first reinforcing rib, which enhances the strength and stability of the cover body to prevent deformation or breakage during use [1] Group 2 - Xiaomi Technology (Wuhan) Co., Ltd. was established in 2017 with a registered capital of 21 million RMB and has invested in 5 companies, holding 1108 patents and 13 administrative licenses [2] - Xiaomi Smart Home Appliances (Wuhan) Co., Ltd. was founded in 2023 with a registered capital of 2 million RMB and has participated in 7 bidding projects, holding 302 patents [2] - Beijing Xiaomi Mobile Software Co., Ltd. was established in 2012 with a registered capital of 148.8 million RMB, has invested in 4 companies, participated in 139 bidding projects, holds 5000 patents, and has 123 administrative licenses [2]