Patent Act Article 73May 1, 2019

Invalidation action

Where an invalidation action is filed, a request form containing a statement and reason(s), along with evidence shall be provided.

Where a patent contains more than one claim, an invalidation action may be filed against parts of the claims.

An invalidation statement shall not be modified or added after filing, but it can be narrowed.

A requester of invalidation action may provide invalidation reasons or evidence within three (3) months after the date of filing the said action.The reason or evidence shall not be examined if the requester fails to provide them within the specified time period.

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