16 Utility Patents
#42 in Qingdao
#7,425 in China
#227,688 in the World
Forward Citations = 4
Company Filing History:
Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd.
Qingdao Sri Technology Co., Ltd.
Other
4. 2 out of 288
Haier Smart Home Co., Ltd.
5. 2 out of 108
Qingdao Haier Refrigerator Co., Ltd.
where one patent can have more than one assignee
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