Inventor · disambiguated record

Han-Yong Oei

Also filed as: OEI HAN Y · OEI HAN-YONG

4 granted patents·50 citations·filing 1978–1989

76Inventor score

Technology areasC23C C10N

Files withMETALLGESELLSCHAFT AG2 OCCIDENTAL CHEM CO1 OXY METAL INDUSTRIES CORP1

Top patents by PatentIndex Score

4 records

0176US4199381APreparation of metals for cold formingOXY METAL INDUSTRIES CORP·Filed 1978·Granted Apr 22, 1980·19 cites·4 claims
0256US4824490AProcess of producing phosphate coatings on metalsMETALLGESELLSCHAFT AG·Filed 1987·Granted Apr 25, 1989·19 cites·12 claims
0337US4416705AComposition and process for production of phosphate coatings on metal surfacesOCCIDENTAL CHEM CO·Filed 1982·Granted Nov 22, 1983·6 cites·7 claims
0431US5039361AProcess of phosphating metal surfacesMETALLGESELLSCHAFT AG·Filed 1989·Granted Aug 13, 1991·6 cites·10 claims

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