Korea Patent

KIPO (Korea Intellectual Property Office, 특허청) is one of the world's most efficient major patent offices with average examination timelines significantly faster than the USPTO, JPO, or EPO. The KIPO examination process works as follows: (1) Filing: application filed (in Korean) at KIPO; foreign applicants must use a Korean registered patent attorney (변리사); PCT national phase entry within 31 months of priority date; applications publish 18 months from priority date; (2) Request for Examination: must be filed within 3 years of the filing date; if not filed, the application is deemed withdrawn; request fee is approximately KRW 143,000 base + KRW 44,000 per claim for large entities; (3) Examination: KIPO examiner searches prior art (including Korean, Japanese, US, and European literature) and issues a first Office Action typically 8–12 months after the examination request — much faster than most major offices; (4) Response: applicant has 3 months (extendable) to respond with amendments and/or arguments; (5) Final Office Action and re-examination: if the examiner issues a Final Office Action (최후거절이유통지), the applicant has 30 days to file a Request for Re-examination (재심사) with narrowing claim amendments — a unique Korean mechanism that allows one additional prosecution round before appeal; (6) Appeal to IPTAB: if re-examination fails or is not pursued, appeal to the Intellectual Property Trial and Appeal Board (특허심판원, IPTAB); (7) Patent Court of Korea: further appeal from IPTAB to the specialized Patent Court; (8) Grant and maintenance: payment of registration fee + annual maintenance fees; 20-year term from Korean filing date. KIPO also offers Priority Examination (우선심사) that can accelerate the first OA to 1–3 months for qualifying applicants (PPH, green tech, SMEs with marketed products).

Yes — Korea has a utility model (실용신안, siryong sinan) system governed by the Utility Model Act. Korean utility models differ from Japan's in a key way: Korea conducts substantive examination of utility models (novelty and inventive step), unlike Japan which registers utility models without substantive examination. This means Korean utility models take longer to register than Japanese utility models but provide a more legally robust registered right. Korean utility model features: (1) Covers devices — physical articles and their structure; does NOT cover methods, processes, or chemical compositions; (2) Substantive examination — examiner reviews novelty and inventive step (simpler inventive step threshold than patents: 'easily derivable' vs. 'would not have been obvious to a person skilled in the art'); (3) Term: 10 years from the filing date; (4) Filing fee: lower than patent applications; (5) Conversion: utility model applications can be converted to patent applications before the first OA, and patent applications can be converted to utility model applications; (6) Dual filing: it is permissible to file both a patent application and a utility model application for the same invention simultaneously — if a patent is granted, the utility model registration lapses for the overlapping scope. Korean utility models are useful for: device inventions with a shorter commercial cycle where 10-year protection is sufficient; inventions where a simpler inventive step analysis provides a faster path to registration; technology areas where broad patent claims face inventive step challenges but a more specific utility model can be registered.

Korea's Intellectual Property Office participates in both the bilateral Patent Prosecution Highway (PPH) with the USPTO and the Global PPH program. The PPH with KIPO works as follows: (1) Qualifying basis: a US patent application with at least one allowed claim (or a PCT Written Opinion or International Preliminary Examination Report finding claims novel, inventive, and industrially applicable) can serve as the basis for a KIPO PPH request; (2) Claim correspondence: Korean claims must correspond to (be of equal or lesser scope than) the US-allowed claims; each Korean claim must be mapped to a specific US-allowed claim in a claim correspondence table submitted with the PPH request; (3) Acceleration: KIPO will advance the application out of the normal examination queue and typically issue a first Office Action within 1–3 months of the PPH request — compared to 8–12 months for regular examination and potentially longer in heavily-backlogged technology areas; (4) Fee: there is no additional PPH fee at KIPO; (5) Global PPH: if you obtained a positive ISA/US, ISA/EP, or ISA/KR Written Opinion in a PCT application, you can use the Global PPH mileage program to accelerate examination at KIPO without a corresponding US-allowed claim. Strategy for Korean prosecution: the most efficient path for US patent applicants entering Korea is (a) file PCT application within 12 months of provisional; (b) at US national phase, prosecute with Track One or PPH for fast allowance; (c) at Korean national phase (within 31 months of priority), file PPH request using US-allowed claims to accelerate KIPO examination to 1–3 months; (d) Korean examination often results in allowance in a single office action when PPH-aligned claims are presented. Total timeline from PCT filing to Korean grant via PPH: approximately 18–24 months.

Korean inventive step analysis (진보성 판단) is governed by the Korean Patent Act and has been developed through extensive Korean Supreme Court and Patent Court case law. Key differences from the US KSR standard: (1) Combination analysis: Korea's inventive step test asks whether a person skilled in the art would have been 'motivated' to combine the cited references — more aligned with the pre-KSR Teaching-Suggestion-Motivation (TSM) test than the flexible post-KSR US approach; Korean examiners and courts require a showing that the motivation to combine was clearly established in the prior art or known in the field; (2) Teaching away: Korean law gives significant weight to prior art that teaches away from the claimed invention — if a reference explicitly discourages the combination or makes it counterintuitive, this supports inventive step in Korea more readily than it might in the US; (3) Secondary considerations: commercial success, long-felt need, unexpected results, and expert recognition are considered in Korean inventive step analysis, similar to the US Graham v. John Deere secondary considerations framework; (4) Obvious to try: Korea does not have an explicit 'obvious to try' doctrine as developed in the US or Canada — the analysis focuses on whether the skilled artisan would have been motivated to make the specific combination, not merely whether it was among a finite set of alternatives; (5) Claim scope: Korean examiners often reject claims on obviousness where the US examiner might allow the same scope — the Korean preference for narrower, specific claims means that prosecuting broader US-style claims in Korea often requires narrowing amendments. For US applicants: draft Korean claims to include more specific features than US independent claims; plan to add dependent claims with specific structural/functional features as fallback positions; teaching-away arguments from the prior art are often more effective in Korea than KSR-era US prosecution.

The Korean patent landscape is uniquely important for US technology and manufacturing companies for several reasons: (1) Dense Samsung and LG/SK patent portfolios: Samsung Electronics, Samsung Display, LG Electronics, LG Display, SK Hynix, and Hyundai/Kia are prolific patent filers with enormous Korean-origin patent portfolios covering semiconductors, OLED displays, lithium-ion batteries, automotive technology, and consumer electronics. FTO analysis for these technology sectors must include KIPRIS (Korean patent database) searches alongside USPTO/EPO/JPO searches; (2) KIPO examination speed as a strategic advantage: KIPO's fast examination (8–12 months to first OA) means that a Korean patent can be granted in 18–24 months from filing — faster than US patents in many technology areas; granted Korean patents can be used as priority examination basis at other offices (including USPTO via PPH); (3) Korean standards and SEPs: Korea is home to major 5G, LTE, Wi-Fi, and Bluetooth standard contributors; significant standard-essential patent portfolios are held by Korean entities; FRAND licensing disputes involving Korean patent holders have been adjudicated in Korean courts, the US, China, and Europe; (4) Unique patent documents: a substantial body of Korean technical disclosures exists only in Korean language; English abstracts through KIPRIS and Google Patents provide access but machine translation quality varies; prior art searches for technologies developed in Korea require Korean-language searches through KIPRIS or specialist Korean patent search firms; (5) IP enforcement in Korea: Korean courts actively enforce patents; injunctive relief is available and regularly granted; damages calculations are evolving toward higher awards; Korea is a major venue for global IP disputes between US/European technology companies and Korean conglomerates.