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«A.Zalesov & Partners» Patent & Law Firm is a full-service IP law firm that gives IP advice, handles litigation (patents, trademarks and designs) and provides services in patent, design and trademark prosecution in the Russian Patent and Trademark Office and the Eurasian Patent Office. We handle our international clients' patent and trademark portfolios (including Madrid and Hague Systems of trademark and design registration) in Russia as well as in the neighboring countries, including the countries of the Eurasian Custom and Economic Union. Twenty years of experience in conducting patent and trademark disputes between leading players in the relevant markets in Russia and abroad enables us to give verified practical advice on IP protection, invalidation and enforcement strategy.

 

In focus

A.Zalesov & Partners win the dispute on public domain over Dapagliflozin

«A.Zalesov & Partners» won a case in the IP Court seeking to have a competitor's actions considered unfair competition and to recognize the right to use the inventions for the compound Dapagliflozin and a pharmaceutical composition containing Dapagliflozin.

03.12.2025

The Presidium of the IP Court issued a ruling in favor of A.Zalesov & Partners’ client in a case challenging a patent for the crystalline form of osimertinib mesylate

«A.Zalesov & Partners» won in the Russian IP Court, having their client's patent for the crystalline form of osimertinib mesylate reinstated in Russia.

01.12.2025

A.Zalesov & Partners are successfully contributing to the establishment of the practice in the field of pharmaceutical procurement

On November 06, 2025, the Arbitration Court of the Moscow District considered a cassation appeal against the rulings of the courts of first and appellate instance in the field of pharmaceutical procurement. In this appeal, «A.Zalesov & Partners» represented a third party—the auction winner—who did not make independent claims regarding the subject of the dispute. The ruling in this case was the first cassation court ruling in cases with similar circumstances.

01.12.2025