Inventor · disambiguated record
Changhai Li
Also filed as: LI CHANGHAI
45 granted patents·13 pending applications·66 citations·filing 2000–2019
96Inventor score
Top patents by PatentIndex Score
58 records- 0197US9724796B2Wheel polishing apparatusCITIC DICASTAL CO LTD·Filed 2015·Granted Aug 8, 2017·16 cites·1 claims
- 0296US9833873B2Wheel deburring device and deburring methodCITIC DICASTAL CO LTD·Filed 2015·Granted Dec 5, 2017·12 cites·4 claims
- 0392US9707620B2Open-type side-mold water spot-cooling device, manufacturing method thereof and method for cooling a casting moldCITIC DICASTAL CO LTD·Filed 2016·Granted Jul 18, 2017·4 cites·8 claims
- 0489US9713837B2Water spot cooling device of bottom mold for wheel hub casting and method for cooling bottom moldCITIC DICASTAL CO LTD·Filed 2015·Granted Jul 25, 2017·2 cites·8 claims
- 0589US9492865B2Take out device of wheel die casting machineCITIC DICASTAL CO LTD·Filed 2015·Granted Nov 15, 2016·2 cites·1 claims
- 0685US10234352B2Device and method for measuring air tightness of aluminum alloy hub or tyreCITIC DICASTAL CO LTD·Filed 2016·Granted Mar 19, 2019·2 cites·5 claims
- 0785US9839992B2Deburring brushXUE BOWEN·Filed 2015·Granted Dec 12, 2017·6 cites·1 claims
- 0884US10549339B2Low-pressure casting mold for aluminum wheelCITIC DICASTAL CO LTD·Filed 2018·Granted Feb 4, 2020·2 cites·1 claims
- 0982US9863838B2Air tightness detection device for aluminum alloy wheel hub and method for detecting air tightness of wheel hubCITIC DICASTAL CO LTD·Filed 2016·Granted Jan 9, 2018·3 cites·8 claims
- 1080US10335859B2Wheel lightweight machining fixture and methodCITIC DICASTAL CO LTD·Filed 2017·Granted Jul 2, 2019·3 cites·3 claims
- 1178US10499462B2On-line induction heating device for wheel blankCITIC DICASTAL CO LTD·Filed 2017·Granted Dec 3, 2019·1 cites·1 claims
- 1271US9677157B2Process of preparing aluminum alloyWANG LISHENG·Filed 2015·Granted Jun 13, 2017·1 cites·3 claims
- 1369US10328487B2Low-pressure cast aluminum wheel moldCITIC DICASTAL CO LTD·Filed 2017·Granted Jun 25, 2019·0 cites·3 claims
- 1469US10196087B2Method for drilling a steering knuckle castingCITIC DICASTAL CO LTD·Filed 2016·Granted Feb 5, 2019·2 cites·11 claims
- 1567US6482759B1Molybdenum silicide material with high strengthSANDVIK AB·Filed 2000·Granted Nov 19, 2002·8 cites·9 claims
- 1664US10675675B2Water-cooled mold for low-pressure casting of aluminum alloy wheelCITIC DICASTAL CO LTD·Filed 2018·Granted Jun 9, 2020·0 cites·7 claims
- 1763US2018264544A1Low-pressure cast aluminum wheel moldCITIC DICASTAL CO LTD·Filed 2017·Application pending·0 cites
- 1862US10201850B2Local extrusion device for high-pressure castingCITIC DICASTAL CO LTD·Filed 2017·Granted Feb 12, 2019·0 cites·7 claims
- 1961US11118254B2Thermal treatment method for aluminum alloy cast-spun wheelCITIC DICASTAL CO LTD·Filed 2018·Granted Sep 14, 2021·0 cites·6 claims
- 2061US10807160B2Aluminum alloy low-pressure casting device and processCITIC DICASTAL CO LTD·Filed 2018·Granted Oct 20, 2020·0 cites·2 claims
- 2159US11370247B2Automobile hub with hollow rim, hub assembling method and automobileCITIC DICASTAL CO LTD·Filed 2019·Granted Jun 28, 2022·0 cites·8 claims
- 2259US10058913B2Low-pressure casting bottom mold for aluminum alloy hubCITIC DICASTAL CO LTD·Filed 2017·Granted Aug 28, 2018·0 cites·6 claims
- 2358US11312175B2Automobile hub of multilayer rim, hub assembling method and automobileCITIC DICASTAL CO LTD·Filed 2019·Granted Apr 26, 2022·0 cites·5 claims
- 2458US10654099B2Mold for reducing defects in low pressure casting of aluminum alloy wheelCITIC DICASTAL CO LTD·Filed 2019·Granted May 19, 2020·0 cites·9 claims
- 2557US10758973B2Aluminum wheel squeeze casting process and deviceCITIC DICASTAL CO LTD·Filed 2018·Granted Sep 1, 2020·0 cites·9 claims
- 2657US10245635B2Low-pressure mold for improving performance of spokes of aluminum wheelCITIC DICASTAL CO LTD·Filed 2017·Granted Apr 2, 2019·0 cites·2 claims
- 2755US11338613B2Wheel and rim with weight reduction socketsCITIC DICASTAL CO LTD·Filed 2018·Granted May 24, 2022·0 cites·12 claims
- 2855US10919083B2Process for manufacturing aluminum alloy wheelCITIC DICASTAL CO LTD·Filed 2018·Granted Feb 16, 2021·0 cites·3 claims
- 2952US11052703B2Wheel and rim with inner flange having strip weight reduction socketsCITIC DICASTAL CO LTD·Filed 2018·Granted Jul 6, 2021·0 cites·14 claims
- 3052US10494699B2Method of refining aluminum alloyCITIC DICASTAL CO LTD·Filed 2016·Granted Dec 3, 2019·0 cites·5 claims
- 3152US10220437B2Water cooled mold for casting aluminum alloy wheels and manufacturing method thereofCITIC DICASTAL CO LTD·Filed 2016·Granted Mar 5, 2019·0 cites·9 claims
- 3252US10010931B2Closed side mold water spot cooling apparatus, manufacturing method and use thereofCITIC DICASTAL CO LTD·Filed 2016·Granted Jul 3, 2018·0 cites·6 claims
- 3352US9709464B2Drum for simulating road surfacesCITIC DICASTAL CO LTD·Filed 2016·Granted Jul 18, 2017·0 cites·10 claims
- 3452US2020147742A1Wheel deburring machineCITIC DICASTAL CO LTD·Filed 2019·Application pending·0 cites
- 3549US11338614B2Wheel and rim with weight reduction socketsCITIC DICASTAL CO LTD·Filed 2018·Granted May 24, 2022·0 cites·12 claims
- 3649US2019160523A1Water-cooled mold for casting aluminum alloy wheelCITIC DICASTAL CO LTD·Filed 2018·Application pending·0 cites
- 3749US2019283122A1Low-pressure casting multi-sprue process and device for aluminum alloy wheelCITIC DICASTAL CO LTD·Filed 2018·Application pending·0 cites
- 3848US10456822B2Tandem water spot cooling device for top dieCITIC DICASTAL CO LTD·Filed 2017·Granted Oct 29, 2019·0 cites·6 claims
- 3948US7144017B2Piston ring having wear resistant compositionKONCENTRA MARINE & POWER AB·Filed 2004·Granted Dec 5, 2006·2 cites·25 claims
- 4046US11167587B2Wheel and rim with weight reduction inner flangeCITIC DICASTAL CO LTD·Filed 2018·Granted Nov 9, 2021·0 cites·16 claims
- 4146US10010907B2Method for color register spraying of hubCITIC DICASTAL CO LTD·Filed 2016·Granted Jul 3, 2018·0 cites·3 claims
- 4245US10328486B2Automatically-returning mold ejection device and casting mold comprising the sameCITIC DICASTAL CO LTD·Filed 2017·Granted Jun 25, 2019·0 cites·10 claims
- 4344US9616491B2Split-type mold for wheel castingCITIC DICASTAL CO LTD·Filed 2016·Granted Apr 11, 2017·0 cites·4 claims
- 4444US2016207173A1Clamping device for inscribing machineCITIC DICASTAL CO LTD·Filed 2016·Application pending·0 cites
- 4544US2016207174A1Universal fixture for burring machineCITIC DICASTAL CO LTD·Filed 2016·Application pending·0 cites
- 4644US2018264541A1Cooling device for side mold of cast wheel moldCITIC DICASTAL CO LTD·Filed 2017·Application pending·0 cites
- 4742US10576534B2Mold for improving solidification speed of aluminum alloy cast hot sectionCITIC DICASTAL CO LTD·Filed 2018·Granted Mar 3, 2020·0 cites·10 claims
- 4842US9604277B2Integrated mould for low-pressure casting of wheelsCITIC DICASTAL CO LTD·Filed 2016·Granted Mar 28, 2017·0 cites·4 claims
- 4942US2018264542A1Cast wheel mold cavity exhaust deviceCITIC DICASTAL CO LTD·Filed 2017·Application pending·0 cites
- 5041US10010934B2Exhausting device of low-pressure aluminum alloy wheel casting moldCITIC DICASTAL CO LTD·Filed 2017·Granted Jul 3, 2018·0 cites·4 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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