Assignee
CHANG YU-SHENG
TW·1 granted patent·2 pending applications·0 citations·filing 2007–2010
Top patents by PatentIndex Score
3 records- 0144US2007243007A1Pen with refill tip protective structureCHANG YU-SHENG·Filed 2007·Application pending·0 cites
- 0241US8394057B2Safety syringeCHANG YU-SHENG·Filed 2008·Granted Mar 12, 2013·0 cites·18 claims
- 0327US2012027978A1Multi-element optical substrate and its preparation method, lens module using the multi-element optical substrateCHANG YU-SHENG·Filed 2010·Application pending·0 cites
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