Inventor · disambiguated record
Andrea Callegari
Also filed as: CALLEGARI ANDREA
29 granted patents·2 pending applications·90 citations·filing 2007–2023
94Inventor score
Files withSICPA HOLDING SA20TILLER THOMAS5CALLEGARI ANDREA4DECOUX ERIC1GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1
Top patents by PatentIndex Score
31 records- 0197US9772607B2Method and system for authenticating a deviceSICPA HOLDING SA·Filed 2014·Granted Sep 26, 2017·28 cites·46 claims
- 0290US8426014B2Modified marking based on chiral liquid crystal polymersTILLER THOMAS·Filed 2010·Granted Apr 23, 2013·7 cites·30 claims
- 0389US8864037B2Multilayer flake with high level of codingSICPA HOLDING SA·Filed 2013·Granted Oct 21, 2014·8 cites·42 claims
- 0488US12049097B2Security documents or articles comprising optical effect layers comprising magnetic or magnetizable pigment particles and methods for producing said optical effect layersSICPA HOLDING SA·Filed 2021·Granted Jul 30, 2024·1 cites·19 claims
- 0587US8426012B2Chiral liquid crystal polymer markingTILLER THOMAS·Filed 2010·Granted Apr 23, 2013·6 cites·35 claims
- 0687US8186573B2Method of marking a document or item; method and device for identifying the marked document or item; use of circular polarizing particlesCALLEGARI ANDREA·Filed 2008·Granted May 29, 2012·16 cites·21 claims
- 0785US12367359B2Security marking, method and device for reading the security marking, security document marked with the security marking, and method and system for verifying said security documentSICPA HOLDING SA·Filed 2021·Granted Jul 22, 2025·1 cites·16 claims
- 0879US11823003B2Method for authenticating a magnetically induced mark with a portable deviceSICPA HOLDING SA·Filed 2020·Granted Nov 21, 2023·1 cites·7 claims
- 0976US8426011B2Marking based on chiral liquid crystal polymersTILLER THOMAS·Filed 2010·Granted Apr 23, 2013·5 cites·36 claims
- 1074US8985463B2Security marking authentication deviceDECOUX ERIC·Filed 2007·Granted Mar 24, 2015·4 cites·9 claims
- 1173US8426013B2Marking based on modified chiral liquid crystal polymersTILLER THOMAS·Filed 2010·Granted Apr 23, 2013·4 cites·32 claims
- 1272US8821756B2Substrate with a modified liquid crystal polymer markingTILLER THOMAS·Filed 2012·Granted Sep 2, 2014·1 cites·33 claims
- 1368US8746555B2Method of marking a document or item; method and device for identifying the marked document or item; use of circular polarizing particlesSICPA HOLDING SA·Filed 2013·Granted Jun 10, 2014·1 cites·10 claims
- 1467US9465367B2Method and system for authenticating using external excitationSICPA HOLDING SA·Filed 2013·Granted Oct 11, 2016·2 cites·31 claims
- 1564US9367710B2Watch identification and authentication system and methodSICPA HOLDING SA·Filed 2013·Granted Jun 14, 2016·1 cites·2 claims
- 1659US9940515B2Image analysis for authenticating a productSICPA HOLDING SA·Filed 2014·Granted Apr 10, 2018·4 cites·14 claims
- 1758US2024270009A1Optical effect layers comprising magnetic or magnetizable pigment particles and methods for producing said optical effect layersSICPA HOLDING SA·Filed 2022·Application pending·0 cites
- 1852US11987066B2Optical security elements, marked object, method of authenticating an object and use of optical security elements for authenticating or securing against counterfeitingSICPA HOLDING SA·Filed 2019·Granted May 21, 2024·0 cites·9 claims
- 1952US9223293B2Method and system for authenticating a timepieceSICPA HOLDING SA·Filed 2013·Granted Dec 29, 2015·0 cites·44 claims
- 2052US8672218B2Method of marking a document or item; method and device for identifyng the marked document or item; use of circular polarizing particlesCALLEGARI ANDREA·Filed 2012·Granted Mar 18, 2014·0 cites·21 claims
- 2152US2025303775A1Overt security featuresSICPA HOLDING SA·Filed 2023·Application pending·0 cites
- 2251US12001011B2Optical element and a method of visually authenticating an objectSICPA HOLDING SA·Filed 2021·Granted Jun 4, 2024·0 cites·15 claims
- 2348US11298966B2Thin optical security element and method of designing itSICPA HOLDING SA·Filed 2018·Granted Apr 12, 2022·0 cites·11 claims
- 2447US12275265B2Security elementGIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH·Filed 2020·Granted Apr 15, 2025·0 cites·18 claims
- 2547US12214612B2Method of designing a light-redirecting surface of a caustic layer, an optical security element comprising the designed light-redirecting surface of the caustic layer, a marked object, use and method of authenticating the objectSICPA HOLDING SA·Filed 2019·Granted Feb 4, 2025·0 cites·8 claims
- 2647US11292283B2Optical security elementSICPA HOLDING SA·Filed 2018·Granted Apr 5, 2022·0 cites·13 claims
- 2747US9285777B2Method and system for authenticating a timepieceSICPA HOLDING SA·Filed 2013·Granted Mar 15, 2016·0 cites·43 claims
- 2846US9816031B2Composite marking based on chiral liquid crystal precursorsCALLEGARI ANDREA·Filed 2011·Granted Nov 14, 2017·0 cites·35 claims
- 2944US11847527B2Verifiable access credentialSICPA HOLDING SA·Filed 2020·Granted Dec 19, 2023·0 cites·15 claims
- 3044US10331086B2Method and system for authenticating a timepieceSICPA HOLDING SA·Filed 2013·Granted Jun 25, 2019·0 cites·13 claims
- 3143US8951438B2Simplified control of color shifting properties of a chiral liquid crystal polymerCALLEGARI ANDREA·Filed 2011·Granted Feb 10, 2015·0 cites·44 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →