| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1faec5cb1655b25c600de0c9f6c68c15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_190ffa2ea41177a659dcdf7deb85213d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01B11-0641
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01B11-0675 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B9-02 |
| filingDate |
2009-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90335c5a1eebaaad5512f445f47c0101 |
| publicationDate |
2017-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9739597-B2 |
| titleOfInvention |
Method of authenticating a polymer film by thickness measurement with a white light interferometer |
| abstract |
A method of authenticating a polymer film comprises measuring the thickness of a layer therein by white light interferometry and/or measuring the birefringence of a layer therein. The method, and devices to carry out the method, may be used in security applications, for example to test for counterfeit bank notes. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2672820-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016063790-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11747268-B2 |
| priorityDate |
2008-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |