Assignee
CHANG CHING-HSIANG
TW·1 granted patent·1 pending application·41 citations·filing 2005–2010
Top patents by PatentIndex Score
2 records- 0193US8511958B2Screw with double notchesCHANG CHING-HSIANG·Filed 2010·Granted Aug 20, 2013·41 cites·13 claims
- 0237US2007241274A1Method for calibrating exposure apparatuses of different types using single mask and method to auto-feedback optimum focal lengthCHANG CHING-HSIANG·Filed 2005·Application pending·0 cites
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