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Power companies filing the most patents in Q1 2021 (source: GlobalData)

Assignee Filings
State Grid Corporation of China 3627
China Southern Power Grid Co Ltd 1517
Xi'an Thermal Power Research Institute Co Ltd 628
China Electric Power Research Institute Company Li 286
Samsung SDI Co Ltd 257
ABB Ltd 247
Contemporary Amperex Technology Ltd 228
Mitsubishi Group 202
State Grid Beijing Electric Power Company 202
Siemens AG 182

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