Assignee
CHANG AN-CHAO
TW·2 granted patents·2 pending applications·9 citations·filing 2008–2011
Top patents by PatentIndex Score
4 records- 0171US8418493B2Refrigerant recovery machine with improved cam wheel assemblyCHANG AN-CHAO·Filed 2009·Granted Apr 16, 2013·9 cites·6 claims
- 0229US2011280754A1Cam-type pump structure for a refrigerant recycling machineCHANG AN CHAO·Filed 2010·Application pending·0 cites
- 0328US8616083B2Cam wheel assembly for refrigerant recovery machineCHANG AN-CHAO·Filed 2011·Granted Dec 31, 2013·0 cites·6 claims
- 0428US2011083492A1Leakage Detection DeviceCHANG AN-CHAO·Filed 2008·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →