Intellectual property: Patent and trade mark attorneys in France

Beau de Loménie

Beau de Loménie advises on both prosecution and litigation with a focus on technology-related fields. Didier Intès leads mechanics and civil engineering, handling drafting, strategy and pre-litigation. François Delumeau heads IT, electronics, digital and telecoms, while Pierre-Louis Désormière manages materials, electrotechnics and the aerospace sphere. Pierre Balesta oversees Lille, focusing on medtech and sport.

Autres avocats clés:

Didier Intes; Pierre-Louis Desormiere; Pierre Balesta; Grégory Ingrand; Gaston Vedel


Les références

‘Good combination of technically qualified and legal knowledge in a single unit allowing for deeper cooperation leading to improvements in quality of argument and research.’

‘Beau de Loménie is a reliable and experienced partner with strong expertise in both patent and trademark matters. Their team is very familiar with EPO procedures and provides effective support for our Chinese clients in filing and prosecuting applications in Europe and France.’

‘Pierre Balesta is a highly professional and reliable European patent attorney with deep expertise in EPO practice. He provides valuable and practical guidance on issues arising from filing European patent applications.’

Principaux dossiers


Germain & Maureau

Germain & Maureau, France’s leading trademark and design filer and a top-tier patent attorney practice, provides high-volume, balanced prosecution across all IP rights. Julien Fialletout manages portfolios, oppositions and customs actions. Stéphane Agasse leads chemistry, pharma and life sciences prosecution and litigation. Philippe Verriest oversees IT, electronics and telecommunication. Nicolas Delorme handles mechanics and physics, while Henri Bourgeois drives regional patent filing and contentious work.

Autres avocats clés:

Stéphane Agasse; Henri Bourgeois; Nicolas Delorme; Julien Fialletout; Philippe Verriest


Principaux dossiers


Lavoix

Lavoix, a major European IP firm with integrated patent, trademark attorneys and attorneys-at-law, excels in high-volume prosecution and UPC litigation. Philippe Blot drives electronics and mechanics strategy, while Bertrand Domenego heads physics and materials. Béatrice Holtz oversees life sciences and biotech. Gwenaël Toussaint leads trademarks and designs and Céline Bourneuf handles opposition and appeal proceedings and conducts freedom to operate studies. The firm’s multi-jurisdictional presence strengthens cross-border filings.

 

Autres avocats clés:

Philippe Blot; Bertrand Domenego; Béatrice Holtz; Gwénaël Toussaint; Céline Bourneuf


Les références

‘Adaptability, responsiveness, transparency, attentiveness to client needs and requirements, a dedicated and experienced team, and excellent administrative management of files. The LAVOIX firm is clearly superior to others in the quality of its service, its administrative management, and its adaptability. The LAVOIX firm regularly develops IT tools that facilitate the monitoring of files, costs, and deadlines.’

‘This team’s strengths are its responsiveness and proactivity. This team also demonstrates innovation in its collaborative methods.’

‘Very strong adaptability.’

Principaux clients

INSERM / Généthon / Spark Therapeutics / Sorbonne Université / Université Paris Cité


ARCELORMITTAL


FAURECIA


SANOFI


ORIKINE BIO SL


FRANCE TELEVISIONS


BABYZEN


FLEXIS


LESAFFRE


SYNDICAT DU CHOCOLAT


SOMFY


Principaux dossiers


  • Acting for INSERM, Généthon, Spark Therapeutics, Sorbonne Université and Université Paris Cité in opposition to Bayer et al.’s EP3768304 on IdeS-enabled gene therapy, alongside Généthon’s Crigler–Najjar clinical trial and April 2025 oral proceedings with D Young & Co.
  • Represented ArcelorMittal in opposition and appeal proceedings concerning a patent on metal sheet manufacturing methods to reduce surface waviness (“orange peel”) in vehicle parts, successfully maintained after four appeal oral proceedings and a 115-page decision.
  • Filied a complaint on behalf of France Télévisions against the domain name francetv.net based on the trademark FRANCE TV, resulting in an order for transfer and a finding that the mark is famous.

Plasseraud IP

Plasseraud IP broad practice extends to advice on high-volume EPO, INPI,  and EUIPO prosecutions as well as support in contract negotiations and anti-counterfeiting measures. Ina Schreiber heads the patent department, overseeing drafting, prosecution and oppositions across all technical fields. Nathalie Wajs leads matters in the chemistry and cosmetics sectors, while Philippe Picard is a key contact for matters with ties to Japan.

Responsables de la pratique:

Ina Schreiber


Autres avocats clés:

Cyra Nargolwalla;  Nathalie Wajs; Denis Bourgarel; Benjamin Fontainetion; Laurent Nowak; Charlotte Montaud


Les références

‘The expertise of the professionals involved in IP litigation techniques and IP analysis makes a significant difference, enabling the resolution of uncertainties and the swift adoption of decisions.’

‘Plasseraud IP is able to provide legal IP advice throughout Europe. You can centralise all your needs in the firm.’

‘Plasseraud IP Avocats is a solid, responsive, and expert team in intellectual property. Their approach is strategic, modern, and client-focused. They distinguish themselves through their rigor, availability, and ability to handle complex cases effectively.’

‘Plasseraud IP Avocats has a team that really stands out for its professionalism and reliability. They are quick to respond, very clear in their advice, and manage to combine strong legal knowledge with a real understanding of business needs. Their international perspective and ability to deal with complex matters also set them apart.’

‘Strengths and assets: extensive knowledge of the field, innovation in proposed solutions, practical application using analogs. The firm is supported by high-quality business partners in France and abroad.’

‘Plasseraud IP Avocats is one of the leading IP firms in France – it brings together many specialists, takes part in major cases, and responds proactively to the changing legal landscape (for example, in UPC matters).’

‘Excellent professional expertise, high-quality advice.’

‘The individuals at Plasseraud IP are distinguished by their deep legal and technical expertise, practical advice, and collaborative approach. Partners and associates consistently demonstrate strategic thinking, responsiveness, and excellence in managing complex IP matters, setting them apart from competitors.’

Principaux clients

AEROSPACE & DEFENCE


Exotrail


AGRIFOOD, FOOD & BEVERAGE


Bonduelle


Mauro Colagreco


Mc Cain


Nutriset


SPH – Gérard Bertrand


CONSUMER GOODS & RETAIL


Maped


Henri Selmer


CONSTRUCTION & INFRASTRUCTURES


Bolloré


CONSULTANCY, FINANCIAL & LEGAL SERVICES


AFNOR


Conseil National Des Barreaux (CNB)


Crédit Mutuel


IFOP


ENERGY & RENEWABLES


Ecolab


FASHION, COSMETICS & LUXURY


Cyrillus


Kadalys


Nabilla Beauty


New Balance


Petit Bateau


Les Secrets de Loly


Tape A L’oeil


HEALTHCARE & LIFE SCIENCES


Biomerieux


Biontech


Boiron


Essilor


Imcheck Therapeutics


Institut Pasteur


Mérieux Nutriscience


Mnemo Therapeutics


Robocath


Roquette


Sanofi


Sartorius


Urgo


Withings


IT


Crime Science Technology


Havr


MATERIALS & CHEMISTRY


Chryso


Edilians


Minakem


Siliconix Technology


SPORT, ENTERTAINMENT & MEDIA


Ligue De Football Professionnel


LOSC


Paris Saint Germain


Stade Toulousain


TRANSPORT & MOBILITY


Facel Vega


Gyrolift


Mavic


Norauto


Principaux dossiers


  • Advised COJO (Comité d’Organisation des Jeux Olympiques) on the defence of the so-called “Olympic and Paralympic Properties” in France.
  • Representing Scantrust before the UPC – Paris Central Division to obtain the annulment of a European patent with effect in four territories.
  • Assisting LG Innotek with its European patent portfolio.

Fieldfisher

Fieldfisher demonstrates strength in portfolio management, opposition proceedings, and litigation matters, with a wealth of experience in the fashion, luxury, automotive, and technology segments. The team works seamlessly with Fieldfisher’s European network for coordinated EU-wide brand protection and anti-counterfeiting. Practice head Nathalie Hadjadj-Cazier excels in enforcement matters such as seizures and is a port of call for advice on the registration and defence of IP rights. Yasemin Koyuncu and Alexandre Mochon support global trademark strategies.

Responsables de la pratique:

Nathalie Hadjadj-Cazier


Autres avocats clés:

Yasemin Koyuncu; Alexandre Mochon


Principaux dossiers


  • Advising a leading AI foundation on its trademark strategy.
  • Advising a manufacturer and distributor of vaping devices on the enforcement of its European registered designs against multiple competitors alleged to have infringed its intellectual property rights.
  • Assisting Crocs in multiple infringement proceedings (trademark, design, and copyright) before French courts and IP offices, including seizures and criminal claims, with significant damages at stake.

ICOSA

Specialising in patent matters related to life sciences, medtech and AI-driven innovation, ICOSA delivers investor-focused IP strategies for start-ups and scale-ups. Caroline de Mareüil-Villette leads patent valuation and fundraising due diligence, while Claire Verschelde covers biotech prosecution and opposition work. Virgile Grandclaude is a key contact for clients from the chemical industry.

Autres avocats clés:

Caroline De Mareuil-Villette; Claire Verschelde; Virgile Grandclaude; Manon Bonneton; Laurence Riviere


Les références

‘Working with the ICOSA team has been a fantastic experience. The team is highly knowledgeable, approachable and responsive. ICOSA makes complex matters straightforward and stress-free. We see them as a true partner we can rely on, and their support has been invaluable.’

‘The team at ICOSA stands out for its combination of technical depth, commercial awareness, and client-focused approach. What makes the practice unique is the balance it strikes between high-level strategic IP advice and practical, business-oriented solutions.’

‘The individuals I work with at ICOSA distinguish themselves through their technical mastery, strategic judgment, and personal commitment to client service. They consistently demonstrate an ability to translate complex legal and scientific issues into practical, commercially relevant advice.’

What stands out most is their responsiveness and proactive engagement. I have valued how they anticipate challenges, offer thoughtful solutions, and ensure that deadlines are met without compromising quality. Their willingness to listen carefully, adapt to client priorities, and tailor their approach makes them trusted advisors rather than just service providers.

Icosa brings particular strengths—whether in developing innovative claim strategies, navigating difficult trademark disputes, or coordinating seamlessly with foreign counsel. Their attention to detail, creative problem-solving, and ability to collaborate across disciplines are qualities that have proven invaluable.

Above all, the ICOSA attorneys I’ve worked with are distinguished by their integrity, professionalism, and genuine investment in client success.’

‘In my opinion, the main strength of the ICOSA team is their responsiveness and professionalism: quick, high-quality responses delivered with a supportive, non-commercial approach. This demonstrates their genuine interest in science.’

‘Really great trademark prosecution services, especially relating to oppositions.’

Principaux dossiers


Mosaik

Mosaik‘s IP practice is co-led by litigation expert Pascal-André Gérinier and William Mak, who covers  Asia-Pacific brand protection and international filings. The team focuses on cross-border trademark, design, and copyright strategies for creative, media, and tech clients. Pénélope Ghiglia advises on enforcement matters and cultural sector portfolios.

Responsables de la pratique:

Pascal-André Gérinier; William Mak


Autres avocats clés:

Pénélope Ghiglia


Santarelli

Santarelli provides patent and trade mark attorney services, offering end-to-end IP protection, portfolio management, and enforcement through a multidisciplinary team of attorneys and technical experts. The practice specialises in strategic filings, oppositions, anti-counterfeiting, and cross-border litigation support across the luxury, tech, pharmaceuticals, and consumer sectors and is jointly steered by Eric Le Bihan, an expert in international trade mark portfolios and enforcement, and Hélène Stankoff, who is renowned for her expertise in patent strategy and EPO oppositions.

Responsables de la pratique:

Eric Le Bihan; Hélène Stankoff


Autres avocats clés:

Nathalie Rey; Sophie Marc


Les références

‘A team that is available and pedagogically sound, and knows how to react quickly in emergencies.’

‘The team includes highly qualified patent attorneys who can quickly grasp the intricacies of a case involving a specific technology. Their advice is highly relevant, and they also offer innovative approaches to defending a case.’

‘The Santarelli team is attentive to its clients’ needs.’

Principaux dossiers


  • Advising Yves Saint Laurent on the preparation and drafting of a file demonstrating the well-known character of its historical trademark in the European Union, securing a favourable EUIPO decision on 12 November 2024 in the opposition to EU trademark No. 018869080.

TAoMA Partners

Litigation is at the heart of TAoMA Partners' practice,  with the team's repertoire encompassing pre-litigation, prosecution, and court proceedings as well as arbitration and mediation. The group is headed by Jean-Charles Nicollet, who drives enforcement in the media and fashion segments, Malaurie Pantalacci, who works on international design strategies, Gaëlle Loinger, a key contact for portfolio valuation and related tax issues, and Mélissa Cassanet, who covers consumer goods protection.

Responsables de la pratique:

Jean-Charles Nicollet; Malaurie Pantalacci; Gaëlle Loinger Benamran; Mélissa Cassanet


Les références

‘Availability and responsiveness characterise the firm. The service provided is also always of impeccable quality.’

‘The firm’s strengths lie in its in-depth knowledge and specialisation in intellectual property law, enabling the team to successfully resolve even the most complex legal issues for us, its clients. They also stand out for their many years of experience and proven track record of success, allowing us to rely on their ability to achieve the desired results.’

‘The firm places great emphasis on an individualised approach to each client and on building trust through transparent communication and a high level of ethics.’

Principaux clients

YETI COOLERS


GENCI


ISART DIGITAL


SOLOCAL GROUP


VAONIS


VALHOR


Principaux dossiers