Ningde
China
3
2023-08-10
The entities that hold a legal rights for patent applications filed by inventor Li Heyuan:
Heyuan Li from Ningde, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Bidirectional pressure relief valve, battery and electric device
#2 | 2022-10-20Bidirectional pressure relief valve, battery and electric device
#3 | 2022-03-24Valve, battery and power consumption device
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