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Changfeng Cai

📍 Hubei, CN: #533 of 1,664 inventorsTop 35%

Overall (All Time): #1,837,152 of 4,157,543Top 45%

2

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D945018	Retractable gate	—	2022-03-01
D927140	Bib	—	2021-08-10