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Yongjin Zheng

Pujiang County, CN: #1 of 1 inventorsTop 100%

Overall (All Time): #1,161,504 of 4,157,543Top 30%

4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
D937069	Padlock	—	2021-11-30
D902690	Fingerprint padlock	—	2020-11-24
D834918	Smart padlock	—	2018-12-04
D637888	Lock	—	2011-05-17