| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_825b806452d7d45bfa6f595280d4de1b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_782333618858c598388dc0f3168d40b7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5022cd5413154932092cfcb66bec6207 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24802
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-6419
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2425-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31678
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-6421
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2554-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2307-422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2519-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2255-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-387
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-365
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-308
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77347
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77348
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B29-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7734
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77342
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7787
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B5-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-1205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77924
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-283
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-0883 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64 |
| filingDate |
2009-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07f9536971956718d5bc3e48474c272e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_959e0f9988d499eb9575b4c1ebc6187a |
| publicationDate |
2014-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8822954-B2 |
| titleOfInvention |
Phosphor based authentication system |
| abstract |
A phosphor (photo-luminescent) material based authentication system in which a blend (mixture) of at least two, preferably three or more, phosphor materials are used as a photo-luminescent security marking which is applied to or incorporated within an article/document to be authenticated. Preferably, the phosphor materials are each excitable by “eye safe” excitation radiation comprising visible light of wavelength 380 nm to 780 nm. Moreover, when excited the security marking preferably also emits visible light thereby minimizing any risk of damage to an operator's eye in the event of accidental exposure to the excitation radiation and/or light generated by the photo-luminescent marking. The authenticity of the article/document can be authenticated by verification of the composition of the phosphor by exciting the marking and comparing one or more selected parameters of light emitted by the security marking with corresponding parameters of the characteristic emission spectrum of the authentic phosphor blend. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10721082-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11589703-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2018054871-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022040304-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11435228-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11138612-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10650630-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020018634-A1 |
| priorityDate |
2008-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |