- BackgroundThe patent term extension system was first introduced in Korea on July 1, 1987. Under the 1987 Act, a petition for patent term extension may be filed only during the last three (3) years of the original term of the patent. Under the new 1990 Act, however, a petition for patent term extension may be filed within three (3) months from the date of the approval and six (6) months prior to the expiration date. The current law is basically the same as that of 1990.Some Changes to the current patent term extension system went into effect on April 3, 2013. The key change to the current system is limiting the number of PTE instances from multiple available chances to only one. Under the current PTE system in Korea, PTE may be available only to the "first" regulatory approval for "a new chemical entity."
- Subject Patent and Procedures for PTEA patent is eligible for term extension if the patent is related to an approved medicinal or agricultural product, if the patent was unable to be practiced after grant due to pharmaceutical or agricultural regulatory approval requirements. Such a patent should claim a compound, composition indicating use, formulation for (1) an invention relating to a drug which requires a product approval under the Pharmaceutical Affairs Act ("PAA"); or (2) an invention relating to an agrochemical which must be registered under the Agrochemical Management Act ("AMA").Only registered patentee may apply for patent term extension to KIPO. If the patent right is jointly owned, all the patentees must jointly apply for an extension of the term.An application for PTE must be submitted within three months from the date of the approval under the PAA or from the date of the registration under the AMA. The application, however, may not be submitted less than six months prior to the expiration of the original patent term. Also, a petition for patent term extension may not be filed after the expiration of the patent term. An application for patent term extension should be supported with evidence to show the reason for the extension.
- Period of Patent Term ExtensionsThe term of a patent can be extended only once. In case a product approval (or registration) is sought for multiple patents, the term is extended for each patent. However, in case multiple product approvals (or registrations) are sought for a single patent, the term is extended only for the first approval (or registration).Under the old law, even an approval for a combination product whose components had been previously approved by KFDA could be the basis for PTE. In addition, the approval for a second use of an approved drug could also be the basis for PTE, since the approval was regarded as the "first" approval for the new use. Further, in some cases, even an approval for a new formulation comprising an approved active ingredient could be the basis for PTE, if the new formulation was not simply different in the dose of the active ingredient but was a different administration form compared to the previously approved drug (e.g., injection vs. tablet).However, under the current law and regulation, PTE may be available only once to the "first" regulatory approval for "a new chemical entity."The period of PTE shall be the total length of non-working time to obtain authorization or registration under provisions of the PAA or AMA to work a patented invention. For example, for drugs, the period commencing from either the approval of a protocol for clinical testing from the government authority after obtaining a conditional approval to manufacture for clinical testing or the date the patent is registered, whichever is later; to the date that the final approval to market.The maximum patent term extension obtainable is five (5) years regardless of whether the actual period of non-working caused by the statutory requirements under the relevant Act exceeds five years.
- Appeal to the IPTAB and the Patent CourtIf an examiner of KIPO rejects the petition or application for patent term extension, the applicant or petitioner may appeal to the IPTAB of KIPO. The appeal must be filed within thirty days from the date a certified copy of the rejection is served to the applicant or his agent. On the other hand, a 3rd party may challenge PTE through Invalidation Trial at the IPT of KIPO. If a losing party in the IPT proceedings wants to appeal against the decision of IPT, the party may bring a lawsuit to revoke the IPT decision to the Patent Court within thirty days from the date of receiving the decision.
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Patent Term Extension (PTE) in Korea
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