Assignee

TAN CHENG

CN·2 granted patents·105 citations·filing 1988–2007

Technology mixF01C1 F02B1 G06Q1 Y02T1

Top patents by PatentIndex Score

2 records

0189US8108309B2Protecting a manufactured item from counterfeitingTAN CHENG·Filed 2007·Granted Jan 31, 2012·89 cites·12 claims
0254US4884532ASwinging-piston internal-combustion engineTAN CHENG·Filed 1988·Granted Dec 5, 1989·16 cites·1 claims

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