Inventor · disambiguated record
Li Changhai
Also filed as: CHANGHAI LI
2 granted patents·2 pending applications·3 citations·filing 2015–2015
36Inventor score
Files withCITIC DICASTAL CO LTD4
Top patents by PatentIndex Score
4 records- 0167US9562831B2Rotary wheel airtightness detecting machineCITIC DICASTAL CO LTD·Filed 2015·Granted Feb 7, 2017·3 cites·1 claims
- 0226US2015273576A1Casting equipmentCITIC DICASTAL CO LTD·Filed 2015·Application pending·0 cites
- 0326US2015252460A1Method for improving mechanical properties of aluminum alloy castingsCITIC DICASTAL CO LTD·Filed 2015·Application pending·0 cites
- 0420US9470613B2Apparatus for detecting spring stiffnessCITIC DICASTAL CO LTD·Filed 2015·Granted Oct 18, 2016·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →