|
2011
|
Invention
|
Authentication of articles. The present invention provides a method of authenticating the provena... |
|
|
Invention
|
Article tracking method. There is described a method of tracking an article (30) and protecting i... |
|
2010
|
Invention
|
Security document. The present invention provides a security document and method of production th... |
|
2009
|
Invention
|
Authentication apparatus and methods. Authentication apparatus (1, 100) and methods which authent... |
|
|
Invention
|
Method of authenticating a polymer film. A method of authenticating a polymer film comprises meas... |
