Assignee
ZHANG YONGFENG
CN·3 granted patents·86 citations·filing 1991–2024
Top patents by PatentIndex Score
3 records- 0185USD912036SCell phone stand and wall shelf combinationZHANG YONGFENG·Filed 2020·Granted Mar 2, 2021·15 cites·1 claims
- 0280US5164856ATransmittance-adjustable windowZHANG YONGFENG·Filed 1991·Granted Nov 17, 1992·71 cites·14 claims
- 0335USD1092419SLight switch cover guardZHANG YONGFENG·Filed 2024·Granted Sep 9, 2025·0 cites·1 claims
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