Importation is considered as working of patent, provided the patented product is manufactured in a member country and is imported into another member country which has also granted a patent on the same invention to the same applicant. Imagine that a product X has been patented in two member countries A and B.
The product X is then manufactured in country A and imported into the country B. This product X shall enjooy the same patent protection in the country B even though it has been manufactured in the country A. This would also be considered as if the patent has been worked in country B.
A Patent is a statutory right for an invention granted for a limited period of time to the patentee by the Government, in exchange of full disclosure of his invention for excluding others, from making, using, selling, importing the patented product or process for producing that product for those purposes without his consent.