Assignee
LIU HAIPING
CN·3 granted patents·4 citations·filing 2006–2020
Top patents by PatentIndex Score
3 records- 0159US8057346B2Automatic stepless transmissionLIU HAIPING·Filed 2006·Granted Nov 15, 2011·3 cites·20 claims
- 0253US8282522B2Mechanical-hydraulic continuously variable transmission, the method and vehicle mechanical-hydraulic continuously variable transmissionLIU HAIPING·Filed 2010·Granted Oct 9, 2012·1 cites·16 claims
- 0352US11439787B2Portable air filtration and disinfection device for a respirator systemLIU HAIPING·Filed 2020·Granted Sep 13, 2022·0 cites·20 claims
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