00

General info

Oleg Klymchuk is a well-rounded intellectual property attorney with a particular focus on IT services outsourcing projects, technology, media and communications (TMC).

Oleg regularly advises on transactions involving brands, technology, data and content, particularly in the context of Ukraine-related cross-border M&A’s, join ventures, financing, licensing and other TMC related commercial and IP agreements.

Oleg routinely advises on IP infringement issues helping clients to cease infringements and manage the risks of potential IP infringement. Oleg’s experience and practice also include enforcement of brands and designs against imitation and unfair exploitation. He has also handled IP licensing contentious matters and open source licensing disputes.

Mr Klymchuk advises Sayenko Kharenko clients on the full range of legal issues related to advertising & marketing, data privacy and related issues. In addition, Oleg has substantial experience in entertainment related matters involving copyright, trademarks and media law.

Prior to joining Sayenko Kharenko in 2014, Oleg worked for one of the leading Ukrainian law firms and in the Kyiv office of an international law firm.

Recognition

Recognised among the leading lawyers in Intellectual Property by Chambers Europe 2026, IP Satrs 2025, IAM Patent 1000 2025

Named among the notable practitioners in silver league by World Trademark Review 1000, 2026

Recognised among the world’s leading experts by Lexology Index: Data 2025

Recognised among the leading lawyers in Privacy and Data Security by Best Lawyers International 2022

Named among the notable practitioners in Intellectual Property by Ukrainian Law Firms 2025

Recognised among the notable practitioners in IT by Ukrainian Law Firms 2025

00

Professional membership and involvement

International Trademark Association

The International Association for the Protection of Intellectual Property (AIPPI)

American Chamber of Commerce in Ukraine

European Business Association

Ukrainian Bar Association

00

Admissions

Kyiv Region Bar Association (admitted since 2009)

00

Education

LL.M. from Kyiv Intellectual Property Institute of National University “Odesa Academy of Law”

Media & Insight Oleg Klymchuk

19 March 2026

News

Ольга ВорожбитОлександр ДругАнтон КоробейніковІгор ЛозенкоМаксим Назаренко
Sayenko Kharenko leads the market in Chambers Europe 2026
23 February 2026

News

Sayenko Kharenko shortlisted for Firm of the Year at Managing IP EMEA Awards 2026
02 February 2026

News

Ігор ЛозенкоМаксим НазаренкоОлександр НіколайчикАліна ПлющВолодимир Саєнко
Sayenko Kharenko secures three shortlist positions in CEE Deals of the Year Awards
29 January 2026

News

Sayenko Kharenko’s IP expertise recognised in WTR 1000 2026 Global Rankings
Notification cookies

We use cookies to analyze the behavior of visitors
of our website and improve it. By using our website, you consent to these cookies in accordance with our Cookie Policy.