6 Utility and 3 Design Patents
#669 in Hangzhou
#22,310 in China
#695,270 in the World
rank by utility patentsForward Citations = 10
Company Filing History:
Zhejiang E-p Equipment Co., Ltd.
Hangzhou Sanhua Research Institute Co., Ltd.

4. 1 out of 1,365

5. 1 out of 45

where one patent can have more than one assignee
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