7 Utility Patents
#166 in Qingdao
#19,002 in China
#596,499 in the World
Forward Citations = 4
Company Filing History:
Qingdao Sri Technology Co., Ltd.
Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd.
Qingdai Sri Technology Co., Ltd.
4. 1 out of 3
Luyang Energy-saving Materials Co., Ltd.
5. 1 out of 4
Qingdao Sifang Rolling Stock Research Institute Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today