Assignee
CALLEGARI ANDREA
CH·4 granted patents·16 citations·filing 2008–2012
Top patents by PatentIndex Score
4 records- 0187US8186573B2Method 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
- 0252US8672218B2Method 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
- 0346US9816031B2Composite marking based on chiral liquid crystal precursorsCALLEGARI ANDREA·Filed 2011·Granted Nov 14, 2017·0 cites·35 claims
- 0443US8951438B2Simplified 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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