Assignee
ENSCHEDE & ZONEN GRAFISCH
NL·3 granted patents·317 citations·filing 1987–1993
Top patents by PatentIndex Score
3 records- 0187US5374976ASupport provided with a machine detectable copying security elementENSCHEDE & ZONEN GRAFISCH·Filed 1993·Granted Dec 20, 1994·245 cites·20 claims
- 0284US4830902APaper object printed with ink and coated with a protective layerENSCHEDE & ZONEN GRAFISCH·Filed 1987·Granted May 16, 1989·54 cites·6 claims
- 0345US4930814AIdentity cardENSCHEDE & ZONEN GRAFISCH·Filed 1989·Granted Jun 5, 1990·18 cites·8 claims
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