8 Utility and 1 Design Patents
#5,263 in Beijing
#16,345 in China
#518,164 in the World
rank by utility patentsForward Citations = 8
Company Filing History:

Beijing Oriental Railway Technology Development Co., Ltd

4. 1 out of 3,054

5. 1 out of 34
Douyin Vision Co., Ltd.
where one patent can have more than one assignee
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