Inventor · disambiguated record
Wan-Jy Cheng
Also filed as: CHENG WAN J · CHENG WAN-JY
3 granted patents·27 citations·filing 1988–1990
69Inventor score
Files withDAIREN CHEMICAL CORP3
Top patents by PatentIndex Score
3 records- 0172US4866179AProcess for the manufacture of pyridine in high yield and selectivity during a prolonged period of operationDAIREN CHEMICAL CORP·Filed 1988·Granted Sep 12, 1989·12 cites·23 claims
- 0267US5144062AProcess for producing methyl formateDAIREN CHEMICAL CORP·Filed 1990·Granted Sep 1, 1992·11 cites·5 claims
- 0336US4999177AProcess for the preparation of high purity carbon monoxideDAIREN CHEMICAL CORP·Filed 1989·Granted Mar 12, 1991·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →