ホーム > English > Q152. Amendments

Q152. Amendments

Q152. Amendments
 Can a patentee amend claims during a trial for patent invalidation?

A152. A patentee may request for amendment (correction) of claims during a trial for patent invalidation. Such request can be made within the time limit designated for a patentee’s response to a written request for the trial or to an examination result in a case where the panel has examined any grounds not pleaded by a party.
 Such correction shall be made within the disclosure of the patent application as filed. Furthermore, such correction shall not substantially enlarge or alter the scope of claims. Additionally, such correction shall be limited to the following purposes:
1) To limit the scope of claims;
2) To correct any error in the description or any incorrect translation; and
3) To clarify an ambiguous expression.