The Japanese Patent Office re-introduced the post-grant opposition system in April 2015.
Written by Daniel van Herck
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[Wednesday, 15 April 2015 16:07]
CreatedWednesday, 15 April 2015
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Under the new opposition system any party will be able to file an opposition within 6 month of patent issuance. The opposition period starts from the publication date of the granted patent publication (JP B1/B2 publication).