Problem Diagnosis
Patent attorneys and IP managers working with the Korean Intellectual Property Office (KIPO) face a structural tension: allowance rates are at a nine-year high, but examination speed has deteriorated. In 2024, KIPO allowed 122,382 patent applications, producing an allowance rate of 74.6% — up from 72.9% in 2023 and continuing a climb that began at 60.0% in 2016 (Source 6). Yet the average period between a request for substantive examination and a first office action reached 16.1 months, a sharp increase from the roughly 10.8 months recorded in 2019 (Source 6). For a Korean applicant or a foreign filer managing a global portfolio, that 16-month wait creates a planning blind spot: the right to demand compensation from an accused infringer under Korea’s laying-open system exists only after the application is laid open (18 months from filing/priority) and can only be enforced after grant (Source 7). A slow examination therefore extends the window during which a competitor can commercialize a technology with limited monetary exposure.
The bottleneck is not uniform. KIPO operates two distinct examination tracks — ordinary examination and 우선심사 (accelerated examination). The ordinary track, per KIPO’s own FAQ, takes about 26 months from the examination request to completion (Source 2). The accelerated track, by contrast, delivers a first action in roughly 6 months from the 우선심사 request (Source 2). The difference is not marginal; it is a factor of four. The problem for practitioners is that many applicants treat accelerated examination as an exceptional, reactive tool — invoked only when an infringement threat appears — rather than as a proactive portfolio-shaping lever that can be built into the filing plan from day one.
Analysis
The 2024 statistics, released by KIPO and summarized by FirstLaw P.C. in the APAA e-Newsletter (Issue No. 49, October 2025), give the most current, granular picture of the Korean patent pipeline (Source 6). Total IP filings reached 560,629, a 0.7% increase over 2023. Patent examination requests numbered 199,407. Examiners issued 186,382 preliminary rejections and 39,761 final rejections, while allowing 122,382 cases. The resulting allowance rate of 74.6% marks a return to the upward trend after a one-year dip in 2023.
The speed figure — 16.1 months to first action — is the longest in recent KIPO history. KIPO has publicly committed to reducing that figure by one month in 2025, targeting 15.1 months (Source 6). Even if achieved, a 15-month wait remains substantially longer than the 10.8-month benchmark of 2019. The cause is not a single policy change; it reflects a combination of rising examination volumes, examiner resource constraints, and the lingering effects of procedural slowdowns during the pandemic period.
The accelerated track is governed by KIPO’s 우선심사 rules, which are not a single catch-all but a list of statutory and policy-based eligibility categories. The KIPO website enumerates these categories: applications filed by a person who is actually working (or preparing to work) the invention commercially; applications related to export promotion or government-funded R&D; applications filed by a small or medium enterprise (SME) or a venture business; applications related to green technology or fourth-industrial-revolution technologies; and applications where a third party is already practicing the invention without authorization, among others (Source 1). Each category operates as an independent gateway. An applicant who fits one of them can file a 우선심사 request with the required supporting documents and obtain a first office action in approximately 6 months (Source 2).
The strategic implication is that the 16-month ordinary track and the 6-month accelerated track are not merely two speeds — they are two different risk profiles. On the ordinary track, an applicant who files a request for examination at the three-year statutory deadline (or five years for pre-March 2017 filings) may not see a first action until nearly five years from filing. On the accelerated track, an applicant who files the request early and qualifies for 우선심사 can obtain a first action within roughly 6 months from the request, meaning a grant can occur well before the 18-month laying-open window closes. This timing difference affects when a patentee can send a warning letter, when a competitor must take a license or redesign, and when a portfolio can be marked as registered on products.
For Korean filers, the calculus is particularly sharp. Korean applicants accounted for about 79.5% of patent filings in 2024 (Source 6). Many of those applicants are SMEs or venture-backed companies that qualify for 우선심사 by their very corporate structure. A Korean SME developing a battery component or a semiconductor process can, if it structures its filing and examination request correctly, move from application to grant in roughly 12–14 months total — far faster than the 26-month ordinary examination timeline. That speed converts directly into a competitive advantage in industries where product cycles are short and freedom-to-operate opinions must be obtained before a production line is committed.
Foreign filers — led by the United States (15,576 applications), Japan (13,861), and China (5,652) in 2024 (Source 6) — face a different set of constraints. A U.S. or European applicant often files a PCT application and enters the Korean national phase at 31 months. By that point, the priority application is already 2.5 years old. If the applicant then waits for ordinary examination, the first action may not arrive until year four or five. For a foreign company that needs a Korean grant to support a global licensing program or to list a patent as an asset in a financing round, that delay is material. Accelerated examination offers a way to compress the timeline, but only if the applicant can satisfy one of the eligibility categories — which may require a Korean subsidiary, a licensee already practicing the invention in Korea, or a connection to a government-supported project.
A brief comparative note: KIPO’s ordinary examination speed (16.1 months to first action) is slower than the JPO’s typical first-action pendency, which has historically hovered around 9–11 months, but faster than the USPTO’s average first-action pendency, which often exceeds 20 months for certain art units. The KIPO accelerated track, at roughly 6 months, is among the fastest in the world for a non-provisional, substantive examination. Korean filers who routinely use the accelerated track therefore enjoy a procedural advantage that their U.S. and Japanese counterparts do not always replicate at home. However, the comparison is not one-dimensional: KIPO’s allowance rate (74.6%) is higher than the USPTO’s overall allowance rate (which typically runs in the 60–65% range), meaning that a faster examination in Korea does not come at the cost of a lower grant probability. The two trends — higher allowance and slower ordinary examination — coexist, and the accelerated track is the mechanism that lets an applicant capture the benefit of the high allowance rate without paying the full price of the delay.
Strategic Implication
The 2024 data forces a concrete decision on every patent applicant who files in Korea: whether to place a given application on the ordinary track or to pursue accelerated examination from the outset. The answer should not be a default. It should be a deliberate, case-by-case assessment made at the time of filing or at the time of the examination request, based on three factors: the applicant’s commercial timeline, the eligibility gateways available, and the portfolio’s role in the company’s broader IP strategy.
Action 1: Audit the eligibility gateways at filing. A drafting attorney should, as part of the application preparation checklist, determine whether the applicant qualifies for any 우선심사 category. If the applicant is an SME, a venture company, or a recipient of government R&D funding, the attorney should flag that fact and prepare the supporting documentation — such as a business registration certificate, a venture confirmation certificate, or a government project agreement — at the same time as the specification. The 우선심사 request can be filed concurrently with the examination request, eliminating the need for a later, reactive filing. For a foreign applicant, the attorney should examine whether a Korean subsidiary or a local licensee exists and whether that entity’s activities can satisfy the “working the invention” or “export promotion” categories. This is not a post-grant exercise; it is a pre-examination planning step that should be completed before the examination request deadline.
Action 2: Model the cash-flow impact of the two tracks. An IP manager or legal-ops leader should build a simple financial model that compares the cost of accelerated examination (which involves additional official fees and, often, a higher attorney workload in a compressed period) against the cost of delayed enforcement. If the invention covers a product that will launch in 18 months, a 16-month first-action wait on the ordinary track means the patent will not be granted before the product ships. The company will ship without a registered patent, losing the right to send a pre-grant warning and to demand post-grant compensation for the pre-grant period. The model should quantify that lost leverage. In many cases, the additional cost of accelerated examination is a fraction of the value of having a granted patent at product launch.
Action 3: Use the accelerated track as a portfolio segmentation tool. Not every application deserves accelerated treatment. A portfolio manager should designate a subset of high-priority cases — those covering a core product, a standard-essential feature, or a technology that a competitor is known to be developing — for accelerated examination. The remaining cases can proceed on the ordinary track. This segmentation allows the company to concentrate its examination budget and its attorney time on the cases that matter most, while letting the ordinary-track cases mature at the slower pace. The KIPO statistics show that the appeal success rate from final rejections is 28.1% (Source 6). An applicant who receives a final rejection on an accelerated-track case can appeal to the Intellectual Property Trial and Appeal Board (IPTAB) and, if successful, obtain a remand or allowance. The appeal process adds time, but the initial accelerated examination still gets the applicant to a first decision faster, allowing the appeal to begin earlier. The overall timeline from filing to final resolution on the accelerated track — including an appeal — is still shorter than the ordinary track’s first-action wait alone.
For Korean filers specifically, the message is: the 우선심사 system is not a safety net for emergencies. It is a structural advantage that Korean law provides to domestic SMEs, venture companies, and government-funded projects. A Korean company that does not use it is leaving speed on the table. For foreign filers, the message is: the eligibility gateways are broader than they appear. A foreign applicant with a Korean manufacturing partner, a Korean R&D collaboration, or a Korean subsidiary that is actively preparing to work the invention can often qualify. The key is to document the connection at the time of filing, not after the examination delay has already begun.
The 2024 KIPO statistics confirm that the Korean patent system is granting more patents than ever, but taking longer to do so. The accelerated track is the tool that lets an applicant decouple the high allowance rate from the slow examination speed. The decision to use it is not a procedural afterthought; it is a core strategic choice that should be made at the start of the application’s life, with the same rigor as the decision on claim scope or priority.
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