Taiwan: The public dedication doctrine

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

Cookies Settings

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 SHARED ros bottom lb

More from across our site

McDermott Will & Schulte lawyers explore why the UPC is seeing rapid adoption by medtech for fast-moving disputes, while pharma and biotech take a cautious, selective approach over revocation risks
IP firms may be growing more comfortable with external capital, but uncertainty over who could ultimately own the business is complicating the investment pitch
The former Western District of Texas judge addresses perceptions of his courtroom, reveals what comes next as he returns to practice at A&O Shearman and explains why marathon running is ‘cathartic’
International Anti-Counterfeiting Coalition says it has been blocked from hosting its annual event in the city, ending a long tradition of holding the gathering in the days leading up to INTA’s flagship event
The ITC is a powerful tool for litigators, practitioners say, as the threat of an exclusion order on a critical tech component could mean disrupting the entire data centre's operations
Anna Toh plans to expand Rajah & Tann’s soft IP capabilities, leveraging its Southeast Asia network to support clients on cross-border portfolio management and commercial strategy
The Canadian boutique’s new IP lead says he wants to build a tech-enabled IP practice aimed at giving startups senior expertise away from the traditional ‘big law’ set-up
Qantm IP’s acquisition of Henry Goh & Co shows shifting attitudes towards private equity, with firms increasingly viewing external backing as a normal route to expansion rather than a source of concern
The firm’s involvement in prominent AI cases drew litigator Christian Mammen to join from Womble Bond Dickinson, as US firms continue to bolster AI-focused practices
Two judicial appointments confirmed in Paris and Mannheim, while cross-border injunctions and high-profile procedural rulings keep major patent practices occupied
Gift this article