Mikhailyuk, Sorokolat & Partners

Patent and Trademark Attorneys


Patent LithuaniaMIKHAILYUK, SOROKOLAT & PARTNERS offers the full range of legal services related to patent registration in Lithuania including patent search, patent translation, filing and further prosecution of the Lithuanian patent application, patent maintenance, preparing and recordal of assignment and license agreements as well as representing applicants before courts. We do our best to represent our clients' interests in the most efficient and cost-effective manner.

The validity term of a patent in Lithuania is 20 years from the filing date. For pharmaceutical patents and patents for agrochemicals it is possible to apply for extension of this term for additional 5 years. In case a patent is extended the Supplementary Protection Certificate (SPC) will be issued.

A 6-month novelty grace period term is applied only if a disclosure takes place at the international exhibition or by third parties in bad faith.

Overview of the patent registration procedure in Lithuania:
After completion of filing procedure a Lithuanian patent application undergoes a formal examination. On condition that an applicant submits all required documents, a notification about positive result of the formal examination will be issued. After the formal examination completion the application will be published in the Official Bulletin. No substantive examination on inventions is stipulated by the Lithuanian legislation, the patent is issued on the responsibility of an applicant and may be appealed in court. A patent is issued after payment of the registration fee and the first post grant annuities that should be paid within 3 months.

The procedure of the patent registration in Lithuania takes from 1 to 2 years.

Foreign applicants must be represented before the Office by a registered Lithuanian patent attorney.

What is required for filing a patent application in Lithuania:

  • filing instructions comprising applicant's and inventor's names, addresses and citizenships;
  • a filing number and a date of a priority application or a PCT application;
  • a specification with claims, abstract and drawings;
  • a copy of the amendments, if any;
  • a Power of Attorney simply signed and stamped by the applicant(s); legalization and notarization are not required unless it is signed by a proxy-holder. The executed PoA may be provided to the Lithuanian Patent Office within 3 months from the application filing date.

For conventional applications it is necessary to provide a certified copy of a priority document if claimed. It may be provided to the Lithuanian Patent Office within 16 months from the priority date.

An Assignment Deed from an author to an applicant in case the author and the applicant are not the same people. It may be provided to the Lithuanian Patent Office within 3 months from filing an application.

The term for filing a conventional patent application in Lithuania is 12 months from the priority date. With effect from September 4, 2014 Lithuania closed its national route via the PCT.

If you need further information concerning patent registration in Lithuania or quotation for filing and prosecuting of a Lithuanian patent application please feel free to contact us.

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