How can I invalidate a Eurasian patent?
Within 9 months of the publication of the mention of the grant of a Eurasian patent, any person (non-residents of any contracting state – through a registered Eurasian patent attorney) can file an opposition against the grant of the Eurasian patent to the Eurasian Patent Office. After the 9-month period has expired, the Eurasian patent can be invalidated separately in each of the contracting states according to the national procedures. In Russia, for example, the nullity action, in most cases, should be filed with the Russian PTO, the decision of which is appealable to the Court for Intellectual Property Rights.
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