| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_764aa1740f57e352bb8a6f16cd95d2d0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-062
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-6439
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-0221
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6428 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6408
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-0054
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-0066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-124
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6458
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-003 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G07D7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G07D7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64 |
| filingDate |
2015-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84461f9a1e3b488c645536c9ae11dd42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb4afff5e6616e9619ad181557bf34c7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc6b012c61b4d5af89fa175e1b1b0047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66c2ea050c84e40d5ac27a3c5a6a1849 |
| publicationDate |
2015-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2015260653-A1 |
| titleOfInvention |
Security aspects of multiexponential decays |
| abstract |
At least two luminescent materials are intermingled within a security feature. The materials are selected from among a larger set of luminescent materials each having a different individual exponential decay characteristic (decay constant and initial amplitude response to the degree of excitation) for photo-luminescent emission from the respective material following excitation. The ratio of the decay constants for any two materials is greater than or equal to about 1.5. The selected materials are mixed in one of a plurality of predetermined ratios. The combined emissions from the intermingled materials appear, to an unsophisticated measuring device, to have a single exponential decay constant. Based on measurements for the decay of the combined emissions following excitation, estimates of the individual decay constants and associated initial emission amplitudes allow decoding of the particular combination of materials and/or their ratios to validate the security feature, authenticating the article. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2625253-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110494899-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102019122010-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018059933-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018153411-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110024006-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018044201-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3301655-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11435228-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10900898-B2 |
| priorityDate |
2012-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |