Taiwan: Original priority documents no longer required

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

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

Taiwan: Original priority documents no longer required

Starting July 1 2016, the date on which the revised Enforcement Rules of Taiwan's Patent Law were implemented, applicants filing patent applications in Taiwan are given greater flexibility in the submission of certified priority documents.

According to Taiwan's Patent Law, when claiming priority, an applicant shall submit within 16 months from the earliest priority date a certified copy of the corresponding foreign patent application issued by the foreign IP office receiving the corresponding application. In addition, Article 26.1 of the pre-revised Enforcement Rules of the Patent Law mandated: "The priority document required of a patent application should be original."

In practice, in the event that an applicant had submitted a photocopied priority document as a stop-gap measure to meet a statutory deadline, Taiwan's IP Office would designate a two-month time limit within which to submit the original document matching the photocopy filed earlier. Any further late submission would result in forfeiture of the priority claim.

Prior to July 1 2016, Taiwan's IP Office took a rather strict approach when it came to determining whether the original document filed during the two-month grace period is exactly the same as the photocopy filed earlier. This has led to some undesirable situations where applicants lost their priority claims simply because the original priority documents and the photocopied priority documents submitted in a row carry different issuing dates, irrespective of the fact that the contents disclosed in the two documents are exactly the same.

As a consequence of the revision of the Enforcement Rules, an electronic copy of a certified priority document shall be acceptable if accompanied by the applicant's declaration that the copy is genuine. On this score, in addition to an original of a certified priority document, the priority document now acceptable to the IP Office also includes: (1) a certified priority document on a CD provided by the IP office of a foreign country; (2) an electronic copy of a certified priority document downloaded from the official website of the IP office of a foreign country; or (3) a scanned copy of the original certified priority document issued by the IP office of a foreign country.

yin.jpg

Fiona CC Yin


Saint Island International Patent & Law Offices7th Floor, No. 248, Section 3Nanking East RoadTaipei 105-45, Taiwan, ROCTel: +886 2 2775 1823Fax: +886 2 2731 6377siiplo@mail.saint-island.com.twwww.saint-island.com.tw

more from across site and SHARED ros bottom lb

More from across our site

VO, which has offices in the Netherlands, Belgium and Germany, is the second European IP firm to secure external backing this week
The Bardehle Pagenberg attorneys-at-law discuss the firm’s Managing IP EMEA Awards 2026 success, Unified Patent Court litigation strategy, and evolving European patent trends
A patent battle between two legal tech companies and a loss for Elon Musk’s xAI against OpenAI were also among the top talking points
With drug prices a hot topic in the US, courts are seemingly more reluctant to prevent the entry of generics to the market
Academic Eden Sarid joins us during Pride Month to discuss queer expression and IP law, Patagonia v Pattie Gonia, and how queer and AI-generated creations both pose novelty concerns
Patent attorney Michael Henson joins the firm to lead its freshly launched blockchain and digital assets practice
A dispute over mammogram technology, and a development in the case between GSK and Moderna were also among the top talking points in recent weeks
With rankings for Western Europe set to be published on June 25, we sat down with our research lead to find out what practitioners and law firms can expect
Peter O’Sullivan, a professional services executive, says he is looking forward to helping Pearce IP become the leading life sciences firm in Australia and New Zealand
Matteo Di Lernia, advocate at LCA Studio Legale, unpicks the CJEU’s ruling in M.M. Ristorazione v Villa Ramazzini, including its impact on litigation strategies
Gift this article