Beijing
China
5
2025-10-30
The entities that hold a legal rights for patent applications filed by inventor Li Haiyan:
Haiyan Li from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Intelligent Low-Carbon Treatment and Reuse System for Stormwater and Wastewater
#2 | 2025-06-12DENITRIFICATION AND DEPHOSPHORIZATION COMPOSITE FILLER, PREPARATION METHOD AND APPLICATION
#3 | 2020-11-12Method and device for dirt intercepting permeable pavement
#4 | 2020-07-30PRIVACY PROTECTION COMPONENT AND ADJUSTING METHOD, DISPLAY PANEL AND DISPLAY DEVICE
#5 | 2019-07-11Circuit and method for regulating power supplying, and test system
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