Light Guide Film, Forgery Prevention Structure, And Forgery Prevention Article - EP3470896

The patent EP3470896 was granted to DAI Nippon Printing on Feb 17, 2021. The application was originally filed on Jun 13, 2017 under application number EP17813323A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3470896

DAI NIPPON PRINTING
Application Number
EP17813323A
Filing Date
Jun 13, 2017
Status
Granted And Under Opposition
Jan 15, 2021
Grant Date
Feb 17, 2021
External Links
Slate, Register, Google Patents

Patent Summary

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ORELL FUSSLINov 11, 2021E BLUMWITHDRAWN

Patent Citations (23) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTJP2005019066
INTERNATIONAL-SEARCH-REPORTJP2005025208
INTERNATIONAL-SEARCH-REPORTJP2007203568
INTERNATIONAL-SEARCH-REPORTUS2012162771
INTERNATIONAL-SEARCH-REPORTUS2013056972
OPPOSITIONAT509928
OPPOSITIONEP1862827
OPPOSITIONEP1882961
OPPOSITIONEP2447744
OPPOSITIONFR2942549
OPPOSITIONUS2005121415
OPPOSITIONUS2011128600
OPPOSITIONUS2012044572
OPPOSITIONUS8367277
OPPOSITIONUS8412007
OPPOSITIONWO2011147520
OPPOSITIONWO2013180725
OPPOSITIONWO2014016343
OPPOSITIONWO2014044912
OPPOSITIONWO2015062641
SEARCHUS2013056972
SEARCHUS2015145239
SEARCHWO2015096859

Non-Patent Literature (NPL) Citations (2) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- Bruck Roman, Hainberger Rainer, "Efficiency enhancement of grating couplers for single mode polymer waveguides through high index coatings", ECIO08 Eindhoven: 14th European conference on integrated optics. June 11-13 2008, (20080101), pages 201 - 204, XP055865936-
OPPOSITION- LÜTOLF et al., "Up-scalable method to amplify the diffraction efficiency of simple gratings", Optics Letters, (20141201), vol. 39, no. 23, pages 6557 - 6560, XP001592826

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Dossier Documents

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