Assignee
CHANG WEI-MING
1 granted patent·2 pending applications·4 citations·filing 2006–2018
Top patents by PatentIndex Score
3 records- 0135US7998317B2Glycerol (medical grade) preparation method using a by-product of a bio-diesel processCHANG WEI MING·Filed 2008·Granted Aug 16, 2011·4 cites·9 claims
- 0229US2020056097A1Method of treating drilling mud with oil-based drilling fluidCHANG WEI MING·Filed 2018·Application pending·0 cites
- 0327US2008072858A1Apparatus for Providing Fuel Saving and Low Emission Heavy Fuel OilCHANG WEI-MING·Filed 2006·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →