Inventor · disambiguated record
Cheng L. Kwan
Also filed as: KWAN CHENG L · LAP KWAN CHENG
3 granted patents·37 citations·filing 1984–1989
71Inventor score
Technology areasA63H
Top patents by PatentIndex Score
3 records- 0166USD315029SPortable fluorescent lampHANG TJUK IND CO LTD·Filed 1987·Granted Feb 26, 1991·14 cites·1 claims
- 0257USD324892SReconfigurable toy carHUNG CHUK INDUSTRIAL COMPANY LTD·Filed 1989·Granted Mar 24, 1992·11 cites·1 claims
- 0345US4585423AToy vehicleHANG TJUK IND CO LTD·Filed 1984·Granted Apr 29, 1986·12 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →