Assignee
DUAN QIANG-FEI
CN·1 granted patent·4 pending applications·4 citations·filing 2007–2012
Top patents by PatentIndex Score
5 records- 0165US8500301B2Illuminant device and manufacturing method of lamp holderDUAN QIANG-FEI·Filed 2012·Granted Aug 6, 2013·4 cites·18 claims
- 0236US2013088880A1Led lighting deviceDUAN QIANG-FEI·Filed 2011·Application pending·0 cites
- 0335US2012293989A1Lighting device with a liquid ejection functionDUAN QIANG-FEI·Filed 2011·Application pending·0 cites
- 0435US2013077320A1Optical lens and illuminant device using the sameDUAN QIANG-FEI·Filed 2011·Application pending·0 cites
- 0531US2007229292A1Abnormal warning apparatus and detecting device for fluid circulating systemDUAN QIANG-FEI·Filed 2007·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →