Taiwan: TIPO provides remarks on time limits in invalidation proceedings

Managing IP is part of Legal Benchmarking Limited, 4 Bouverie Street, London, EC4Y 8AX

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Taiwan: TIPO provides remarks on time limits in invalidation proceedings

ales-krivec-zmzhcvivgbg-unsplash.jpg

Yen-Bin Gu of Saint Island Intellectual Property Group explains how TIPO has reacted to the regulations introduced to counter lengthy invalidation actions

Under the old Patent Act, a supplementary invalidation brief, evidence, a counter-statement, and/or amendment of claims could be filed at any time before Taiwan’s Intellectual Property Office (TIPO) issued a decision.

In order to prevent an invalidation action from dragging on for too long, TIPO has included a rigid timeframe in the new Patent Act that was implemented and enforced since last year. 

After taking stock of the situation brought about by the stringent time-constraint requirement over a year, TIPO has provided some remarks: 

1. The new stipulation that an invalidation petitioner must submit supplementary briefs and/or evidence within three months from the date that the invalidation action is filed, or within one month from the receipt of any notification from TIPO, has been and will be strictly observed. In this context, any supplementary evidential materials that are filed late would not be taken into account except if they are filed at the request of the responsible examiner to clarify the circumstances of the case.

2. Filing amendment of claims in an invalidation action is also restricted. The patentee is only allowed to conduct an amendment before a deadline designated by the examiner for submitting a counter-statement, a supplementary counter-statement or upon receipt of a notification from TIPO that there are lingering doubts to be cleared, or that the amendment filed with the counter-statement has been rejected. No time limit is imposed on the patentee only if the patent at issue is the subject of a merit lawsuit.

3. In the case that a counter-statement against an invalidation action is filed along with an amendment after a designated deadline, the contents of the counter-statement, filed prior to finalisation of the invalidation action, are to be considered. As to the amendment, it will be rejected for not being filed at an appropriate time as specified above. However, since the contents of the counter-statement filed by the patentee are drafted based on the amendment concurrently filed, the examiner will generally notify the patentee that the amendment not timely filed is rejected and the case will be examined based upon the granted claims as published. Upon receipt of such notification, the patentee may re-file the amendment and the examiner will examine it with cross-reference to the contents of the counter-statement as filed.

In view of the time limits prescribed in the Patent Act, either the invalidation petitioner or the patentee is placed under tight time pressure. It would be of much help if practitioners could assist their clients to collect useful evidential materials and develop winning strategies in the first place. 

Yen-Bin Gu

Partner

E: siiplo@mail.saint-island.com.tw

 

more from across site and SHARED ros bottom lb

More from across our site

Jinwon Chun discusses the need for vigilance, his love for iced coffee, and preparing for INTA
Karl Barnfather’s new patent practice will focus on protecting and enforcing tech innovations in the electronics, AI, and software industries
Partner Ranjini Acharya explains how her Federal Circuit debut resulted in her convincing the court to rule that machine learning technology was not patent-eligible
Paul Hastings and Smart & Biggar also won multiple awards, while Baker McKenzie picked up a significant prize
Burford Capital study finds that in-house lawyers have become more likely to monetise patents, but that their IP portfolios are still underutilised
Robert Reading and Faidon Zisis at Clarivate unpick some of the data surrounding music-related trademarks
China's latest IP litigation statistics and a high-profile hire by O'Melveny were also among the top talking points this week
David Aylen, who spent more than 20 years at Gowling WLG, has joined United Trademark and Patent Services as of counsel in the UAE
Europe is among the most lucrative legal markets for PE firms to bet on, but clients’ reactions will decide whether external investment drives success
Rulings of note covered pre-June 2023 infringements and jurisdiction over non-UPC states, while winners of Managing IP’s EMEA Awards acted in multiple cases
Gift this article