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Boriana Guimberteau

Boriana Guimberteau

Partner - Avocat au Barreau de Paris

Boriana is a leading IP Partner, renowned for her strategic guidance in both contentious and non-contentious intellectual property matters.

D +33 01 44 15 82 03
M +33 6 86 97 40 61

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Awards and Recognition

Intellectual Property: Trade Marks and Designs

The Legal 500 EMEA 2025

Individuals: enforcement and litigation
« Other recommended experts » : “Boriana Guimberteau of Stephenson Harwood handles enforcement instructions with precision. Her focus on securing client victories is complemented by her close collaboration with London counterparts, ensuring the development and execution of internationally informed strategies.”

WTR 1000 2025

Lexology Index - France 2025 report

Lexology Index – France 2025

Copyright Star 2025
Trade Mark Star 2025

IP Stars 2025

Biography

Languages -  French, English, Bulgarian
Jurisdiction - France

Boriana Guimberteau is a trusted ally for clients in the fashion, luxury, tech, and media sectors, leveraging her extensive experience to navigate complex IP landscapes. Her career began as in-house counsel at LVMH, where she honed her skills in the perfumery division, before co-heading the IP department at a French firm for 17 years.

At Stephenson Harwood, she continues to provide invaluable support to clients, from UK retail companies to international luxury groups, ensuring their brands are protected and their innovations are secure. Boriana's expertise spans the full spectrum of intellectual property rights, from trademark and copyright to designs and unfair competition. She is adept at handling everything from availability searches to multi-jurisdictional disputes, and regularly represents clients before specialised French and European jurisdictions. Her ability to draft and negotiate complex IP contracts ensures that her clients' interests are safeguarded at every turn.

Clients appreciate Boriana's calm and composed approach, even under significant time pressures. Her work with international luxury and jewellery groups on AI highlights her forward-thinking approach and ability to adapt to emerging technologies. Boriana's strategic insight and business acumen make her an indispensable partner in protecting and enhancing her clients' intellectual property assets.

Experience

  • Retail / Fashion    

    Advising a leading US sportswear brand on the management and defence of their trademark portfolios, representing them before French and European authorities in opposition and cancellation proceedings involving complex multi-jurisdictional disputes.

  • Transportation    

    Representing a major international brand owner in ongoing trademark infringement litigation before the French courts concerning the use of a similar sign by a competitor in the mobility sector.

  • Retail / Fashion    

    Advising a leading activewear brand on comprehensive brand protection strategies in France, including customs enforcement, anti-counterfeiting measures, and collaboration with authorities to safeguard its market presence.

EXPERTISE

NEWS AND INSIGHTS

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AI & Disruptive Technology

CJEU to rule on AI and copyright in a landmark case against Google

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Corporate

Stephenson Harwood advises Zedra on the acquisition of RBB Business Advisors

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AI & Disruptive Technology

Cross-jurisdictional AI regulation

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Data Protection

The Neural Network – November 2024

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London

The Neural Network – September 2024

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Data Protection

The Neural Network – July 2024

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Paris

AI, machine learning and big data laws and regulations 2024

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Corporate

The Biden Executive Order on AI: key takeaways

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