Taiwan: The public dedication doctrine

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: The public dedication doctrine

Since being established in 2008, the Taiwan Intellectual Property Court has in its judgments adopted successively the public dedication doctrine developed from US practice. For instance, in a decision rendered in a patent infringement case in 2012, the IP Court pointed out that: for an embodiment disclosed in the specification but not claimed in the claims, it should be deemed to be dedicated to the public, and the claims may not be substantially broadened or altered after publication of the allowance of the patent application based on the disclosure of the specification. This may prohibit an applicant from disclosing his invention in a broader sense in the specification but claiming a narrower scope in the claims so as to facilitate allowance and later asserting a broader scope based on the specification in case of infringement disputes.

Similarly, in a draft of the Patent Infringement Assessment Guidelines published by the IP Office in August 2015 to seek public opinion on the draft, the public dedication doctrine is included as a limitation on the doctrine of equivalents.

While the introduction of the public dedication doctrine to a suitable extent is helpful for the public good, the drafting of the specification and claims is made relatively more difficult. Applicants not only have to be more meticulous in the drafting of the specification and claims, they need to constantly pay attention to whether the claims cover all the modes or ranges enumerated in the specification when amending the claims in reply to an Office action. For an invention patent application which is allowed without any Office actions, the applicant should check the claims to see whether they cover all the modes or ranges enumerated in the specification. In the case of omission, a divisional application might need be filed within 30 days from receipt of the notice of allowance to protect the subject matter not covered by the allowed claims.

Jun-Yan Wu


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 ros bottom lb

More from across our site

Sources at four firms explain how changes to USPTO fees provide opportunities to give clients strategic counselling
An intervention by Dyson into the UK’s patent box regime and a report unveiling the major SEP owners were among the big talking points this week
With the threshold for proving copyright infringement by AI tools clearer than ever, 2025 could answer some of the key questions
Partners at Latham & Watkins and Finnegan reveal how they helped explain their client’s technology to a jury
One of Managing IP’s most influential people in IP for 2024, Hurtado Rivas discusses mental health in the profession, the changing role of a trademark lawyer, and what keeps a Nestlé IP counsel busy
Transactions specialist Mathilda Davidson, who has joined from Gowling WLG, says the firm will help clients seeking venture capital investment
Sources in the US, UK, and Australia hope that pressing questions surrounding AI and patent eligibility will finally be answered this year
Two partners who joined Brown Rudnick last year explain how their new firm’s venture capital experience is helping them accomplish their goals
Michael Gaertner explains why Locke Lord’s merger with Troutman Pepper sparked the need to seek a new home and why Buchanan Ingersoll & Rooney ticked the right boxes
The appointment makes good on the firm’s promise to boost its UPC expertise
Gift this article