7 Utility Patents
#1 in Qiqihar
#18,631 in China
#593,261 in the World
Forward Citations = 8
Company Filing History:
Crrc Qiqihar Rolling Stock Co., Ltd.
Qiqihar Railway Rolling Stock Co., Ltd.
Mudanjiang Jinyuan Coupler and Draft Gear Manufacturing Co., Ltd.
4. 1 out of 1
Crrc Qiqihar Rolling Stock Co., Ltd. Dalian Research & Development Center
5. 1 out of 1
Oiqihar Railway Rolling Stock Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today