Intellectual property: Patent and trade mark attorneys in France

Cabinet Beau de Loménie

Cabinet Beau de Loménie impresses with a strong domestic and European filing practice, both in patents and trade marks. The practice covers the full spectrum of IP advice, from the development and implementation of portfolio strategies to assistance in litigation, and attracts renowned international players alongside well-known French companies as clients, not least thanks to its polyglot team, which is able to offer all of the official European Patent Office languages as well as Chinese and Japanese speakers. The group's experience in representing clients before Europe's most significant intellectual property offices is another clear asset, as is the firm's international network of trusted partner firms. With BDL-IP Access and BDL-IP Safe the practice offers its clients a portfolio management tool and an online timestamp and archiving tool. The six contacts in charge of the practice are patent attorneys: Didier Intès (head of the mechanics group), Aurélia Marie (leader of the trade marks, designs, domain names and copyright practice), François Delumeau (IT, electronics and digital technologies practice head), Pierre-Louis Désormière (who is in charge of the material technology, instruments and electrotechnics group), litigation expert and head of the Lille office Pierre Balesta, and Philippe Hubert (head of chemistry, pharmacy, biology and plant varieties). In addition to the offices in Paris, Lille, Lyon and Marseille the firm also has two German offices, in Duisburg and Munich, as well one in Birmingham, UK.


Casalonga stands out for its deep bench of experts, its extensive office network in France, and its combination of trade mark and patent attorneys along with litigators. The combined strength of its professionals is particularly evident in life sciences disputes, with the team also a growing presence in FRAND disputes for electronics clients. Able to assist with patent and trade mark matters, the well-rounded practice manages a caseload that includes high-stakes strategic advice (on the development of international portfolio strategies, for example), in addition to representation in application proceedings and disputes. Ancillary practices, including domain names, copyright, designs and unfair competition, are also part of the team's spectrum. Olivier Delprat (mechanics, electronics, electrical engineering), Gérard Dossmann (chemistry, pharmaceutical, biotechnology), Gwennhaël le Roy (chemistry, pharmaceutical, physics) and Francis Zapalowicz (electronics, microelectronics, software, new technologies), are the key patent attorneys in the group. Attorney-at-law Caroline Casalonga is the firm's managing partner, overseeing its operations in Paris, Grenoble, Lyon, Montpellier, Toulouse and Beaune, as well as its offices in Alicante and Munich.

Practice head(s):

Caroline Casalonga

Other key lawyers:

Olivier Delprat; Gérard Dossmann; Gwennhaël le Roy; Francis Zapalowicz; Arnaud Casalonga; Karina Dimidijan-Lecomte; Marianne Gabriel; Floriane Codevelle


‘This firm is distinguished by great professionalism in being able to deal with many subjects relating to intellectual and industrial property. They are always available to discuss and advise us as well as possible on the strategies to be adopted, in particular on litigation files. They are also responsive  and able to mobilize urgently when necessary.’

‘The collaboration with the firm allows us to attest to the seriousness, professionalism and tenacity of the team and of the individuals that we work with. They bring us all their professionalism, availability and seriousness. They assist and advise us on our various cases and on the optimisation of our brand portfolio as well as possible.

‘Creative and rigorous approach to cases. Very high capacity to absorb client needs.’

‘Great sincerity in the exchanges, willingness to seek original solutions to defend the client, rigour in the management of files. Casalonga is a great team.’

Key clients


Ortho Partner

BBG HyLine Building Systems





Eram Group


Adeo (Leroy Merlin)

Saint Gobain

Médecins Sans Frontières

Moulin Rouge









Work highlights

  • Represented the client in litigation concerning pharmaceutical patents and SPCs, in particular the interpretation of Article 3 of Regulation (EC) No 469/2009.
  • Represented Ortho Partner in an complex patent infringement and nullity matter regarding brackets.
  • IP support and counselling on trade mark portfolio management.

Germain & Maureau

Germain & Maureau is particularly well-known for its active trade mark practice, but the group is also among the busiest French firms in patent work. With its varied client list -that includes multinationals, small and medium-sized companies as well as start-ups- and a broad practice that handles matters from sectors ranging from luxury and consumer goods to mining (and demonstrating particular strength in the automotive, life sciences and healthcare industries), the practice has proven versatility. Newly opened offices in Bordeaux and Lausanne (both launched in 2020) and growth on both the trade mark and the patent sides of the practice (including the addition of attorneys specialising in artificial intelligence, nanotechnology and information and communication technology), attest to the group's success. The online client service Episoft Web® allows clients to easily stay on top of their files. The partners in charge of the practice are Nicolas Delorme (engineering, mechanics, automotive, aerospace, medical devices, cosmetics), Philippe Verriest (physics, electronics, mechanics, IT, artificial intelligence, telecoms), and Stéphane Agasse (chemistry, pharmaceutical, life sciences); along with Bertrand Geoffray, William Lobelson Julien Fialletout and Hugues Pouzet (all four of whom handle trade marks, designs, copyright and domain names).


‘A very professional team with a wide range of technical skills.’

‘Stéphane Agasse, Nicolas Delorme, Philippe Verriest: easy and simple exchanges while being very professional. Quality analysis.’

‘A dedicated team, very responsive, listening to client issues and proposing solutions.’

‘Strong intuitu personae. Always the same people, competent, to manage the client’s files.’

Plasseraud IP

The team at Plasseraud IP grew its already deep bench further in January 2020, with the promotion of four new partners: trade mark and design attorneys Frédéric Glaize and Laurent Nowak and patent attorneys Yann Debrit and Marion Fauré (both members of the mechanics, electronics and IT team), bringing the total partner count to 30. While its size allows the practice to be extremely versatile, its core activity remains in connection with the aerospace and defence, telecommunications, media, technology, energy, life sciences, pharmaceutical, consumer goods and retail sectors, including an active practice for clients in the wine and luxury goods segments. In addition to strategic portfolio advice, application filing and representation in opposition and post-grant proceedings, the group is also well versed in litigation; and its generous office network (Paris, Toulouse, Grenoble, Angoulême, Bordeaux, Lille, Lyon, Rennes, Madrid, Munich, Prague) facilitates both proximity to clients and international reach. Joint manging partners Cyra Nargolwalla (chemistry and life sciences) and Guylène Kiesel Le Cosquer (trade marks, designs, copyright), along with Prague office-head Eric Burbaud (mechanics, physics, electricity, electronics) and Bertrand Loisel (mechanical and electrical engineering, IT), co-head the practice.

Other key lawyers:

Ina Schreiber; Patrick Boyle; Albert Hassine; Carole Sellin; Denis Bourgarel; Philippe Louvel; Denis Boubal; Benjamin Fontaine; Christophe Pelèse


‘A responsive team and attentive to our needs and wishes. The team is perfectly familiar with the files entrusted and our sector of activity. They formulate in-depth strategy proposals.’

‘Benjamin Fontaine has a perfect knowledge of trade mark law and practice. He treats his matters with the interest and rigour associated with the firm. Benjamin has many qualities including humility and pedagogy. He is a passionate and fascinating trade mark law professional.’

‘The Plasseraud IP teams are made up of specialists passionate about their profession, for patents this applies both scientifically and legally. They are very available to their clients and are committed to understanding their needs, the company’s objectives and the challenges that their intellectual property (IP) portfolio represents for them. Plasseraud IP is always well aware of changes in laws or even anticipates them. Their participation in national and international IP congresses helps them stay at the forefront of new practices in the profession. Plasseraud IP clearly and regularly communicates to its clients the most significant and impactful developments in obtaining and securing IP rights. Plasseraud IP has a network of very reputable firms in most of the countries of the world with which it collaborates and this allows clients to obtain IP rights abroad with the help of local specialists. Communication with clients is clear, precise, direct and adapted to the degree of urgency of the subject dealt with. Meetings are very well organized and the reception of clients is very professional while being warm. Plasseraud IP really listens to its customers and provides quality service. The approach is rigorous and part of a desire to establish a long-term relationship of trust.’

‘Special mention to Ina Schreiber who provides quality advice and has shown great availability while taking on new important responsibilities. She is very smart, very efficient while being very open and it is very pleasant to work with her. She has my full confidence. The people she collaborates with are competent and their relations with clients are very cordial and professional.’

‘A team of great professionals, competent and warm with a strong international network.’

‘A serious and responsive team.’

‘The Plasseraud team possesses unparalleled expertise in the area of EU and French trade mark law. They expertly combine legal acumen with a pragmatic business approach to offer informed advice that allows clients to make the most effective and efficient decisions possible. Patrick Boyle, in particular, stands head and shoulders above the competition when it comes to creative problem-solving and the efficient achievement of highly effective results for clients. Beyond trade mark prosecution and counseling more generally, Patrick Boyle and his colleagues at Plasseraud IP possess unmatched skill in the area of brand enforcement and anti-counterfeiting, regularly relied upon by counsel and in-house teams from around the world to handle complex enforcement matters in the EU and France specifically.’

‘Patrick Boyle is a top shelf adviser and an all-around excellent human being.’

‘Wide-ranging expertise in IP law, including valid support in litigation cases.’

‘The team at Plasseraud combines an impressive set of skills: when we ask them to assist on the technical side in a litigation and to assist the bailiff with the confiscation of counterfeit goods, they always have an expert no matter the field.’

‘The team at Plasseraud is very reactive and has the experts to fit any technical need. Among the partners we are working with, Cyra Nargolwalla and Ina Schreiber stand as first choice in the life sciences field as does Bertrand Loisel in the IT and Telecoms fields.’

‘They are very responsive, quickly answering questions and explaining all intricacies in detail, no matter whether you seek advice regarding IP protection strategies, IP rights enforcement or customs surveillance related issues. Truly customised services tailored to the clients’ expectations and needs.’

‘Laurent Nowak – quick, smart and practical, he is a very experienced practitioner. Laurent understands the sensitivities of certain clients and makes things easy.’

‘Very specialized team in the field of life sciences. Frédéric Niemann and Cyra Nargolwalla are very experienced people and always provide excellent advice. Cyra Nargolwalla is a very high-level professional who always brings you solutions. Frédéric Niemann provides excellent advice for all patent procedures before the EPO (grant, opposition, appeal).’

‘The team at Plasseraud is responsive and efficient. The ability to present responses within short deadlines is an advantage over competitors.’

‘Guylène Kiesel Le Cosquer stands out for her ability to articulacy and in-depth knowledge of her clients’ market. Cyra Nargolwalla impresses with her high-quality work and precision. Ina Schreiber possesses strong analytical skills. Frederic Niemann is known for his ability to propose new solutions to resolve issues for his clients.’

‘Frédéric Glaize has a real passion for the brand in all its dimensions, beyond the simple legal perspective. He does not count his billing hours like many lawyers, but takes the time to explain the issues and is extremely creative in his approach to litigation. I will not change law firm as long as Frédéric Glaize is our advisor.’

‘The team consists of dedicated partners and has international expertise and shows a quick understanding of issues. Plasseraud provides full-scope support to clients to protect their trade marks and designs, and advises them on the best options they can take.’

‘Responsive and commercial. one of the best in Europe.’

‘Patrick Boyle and Guylène Kiesel Le Cosquer are stand-outs in France as high-class practitioners.’

‘The Plasseraud team gives quick and practical solutions to complex problems. They also think outside the box and their advice takes into consideration the commercial aspects of the matter.’

‘Guylène Kiesel Le Cosquer brings her vast experience to the table to solve any issue. This is of great assistance in complex legal issues.’

‘Patrick Boyle is practical and hands-on and clients feel comfortable when he is on the matter.’

‘ Great professionalism combined with highly appreciated human qualities.’

‘The Plasseraud firm benefits from multidisciplinary expertise, mobilised with great efficiency. Their service mentality is exceptional.’

‘Gilles Ringeisen has s very detailed knowledge of all of our files and relies on the expertise of other departments as soon as necessary to offer the most appropriate service possible. The efficiently mobilised international network allows a centralized follow-up of a file, whatever the territoriality of the practices involved.’

‘The Plasseraud IP team is completely multicultural and interdisciplinary. The people who belong to it are quite inventive and responsive according to the needs of the customers. In addition, Plasseraud has several departments in all areas of IP (quality and origins, TM, D&M, copyright, litigation, data processing, domain names and cybersquatting, patent, research and development) which facilitates and enables the firm to manage the entire client portfolio. In addition, Plasseraud IP has representation throughout Europe and internationally.’

‘Very good knowledge of European and French practice in particular, but also of the legal and legal practice of IP in Asia and the United States, territories that clients are always interested in.’

Key clients

Institut Pasteur

Procter & Gamble







IMCheck Therapeutics



Mérieux Nutriscience


New Balance




Silconix Technology


Work highlights

  • Assisted a Marseille-based biotechnology company, specialised in cancer and autoimmune diseases treatment with the due diligence of its intellectual property portfolio during its fundraising.
  • Successfully prosecuted several International trade marks in various jurisdictions despite technical citations of equity rights owned by the same applicant but under a different country or place of business.

Bringer IP

Focused on the IT, electronics, software, mechanics and aeronautical industries, Toulouse-based Bringer IP continues to steadily grow its practice, attracting new prestigious French and international clients. Founding partner and patent attorney Mathieu Bringer offers extensive experience in cross-border matters, especially those involving China, Vietnam and the US; while practice co-head, trade mark attorney and head of the legal department, Léonard Pirastru, brings his experience in Australian law to the table. The group assists with freedom-to-operate analyses, the drafting and filing of applications (including representation in registration office proceedings), the conduct of patentability studies, patent harvesting and litigation assistance. The practice is a popular choice to operate as an externalised IP department.


‘Good strategic and responsive advice.’

‘Mathieu Bringer: solid knowledge of patent law and the peculiarities of Asian clients.’

The team is competent and complementary, which makes it possible to have experts on different subjects (patents, trade marks, etc.) and also has a strong experience, useful for estimating the chances of success of the different procedures, especially internationally.’

‘Mathieu Bringer is both very responsive and a source of good advice, both on general strategy but also on technical points, such as for the preparation of arguments. We are also working with Léonard Pirastru who has extensive experience in trade mark protection, which is very beneficial for us.’

‘Easy to reach with an outstanding capacity to provide an effective answer to the a situation. Problem solved without being overly technical. Human-sized firm ‘

‘Each person in direct touch with us from top management to executive level is professional and casual as well as friendly.’

Key clients

Liebherr Aerospace

Procter & Gamble





IRT Saint-Exupery

Work highlights

  • Assisted Liebherr Aerospace with patent harvesting, patent drafting, patent prosecution, freedom-to-operate analyses and patentability studies.
  • Exclusive IP advisor to electrical equipment, lighting and decoration company HBF on the customisation of all of the client’s IP strategies worldwide, representing the client in several trademark opposition actions, negotiating several contracts with clients and suppliers, filing patent applications and performing worldwide freedom-to-operate analyses.
  • Advised Procter & Gamble on all its trade mark issues in France (filing, opposition and litigation).


Lavoix is one of the few French firms to unite attorneys and lawyers under one roof. The combined teams make the firm an excellent choice for contentious work, both in litigation and in proceedings before the intellectual property offices. Notably, however, the team also demonstrates strength in prosecution work, ranging from filing strategies, freedom-to-operate searches and application drafting to portfolio management and audits. The practice group handles both soft and hard IP, with the core team consisting of managing partner Philippe Blot; EPO opposition and appeals specialist, Bertrand Domenego; mechanics and electronics expert, Gérard Myon; Étienne Habasque (electronics, electrical engineering, telecommunication, physics and computer science); Damien Colombie (engineering, physics, medical devices and packaging); Béatrice Holtz (biotechnology and pharmaceuticals); Béatrice Daubin (trade marks, copyright, designs and domain names); and Olivier Rocher (engineering, computer science and telecommunications). Clients also have access to IP Data2, the firm's online portfolio management tool.

Key clients

Alstom Transport

Arcelor Mittal


Essilor International




Naval Group




Work highlights

  • Assisted the client with the filing of several families of patent applications regarding the vectorisation of antigens in droplets, and representation in the subsequent examination procedures.
  • Advised the client on an ownership claim regarding a patent family.

TAoMA Partners

TAoMA Partners is the result of the merger of former trade mark attorney specialist firm Partenaires IP, and HMV Avocats, a firm specialised in IP, IT, media and communications law. The combined clout of the attorney-lawyer team allows for 360-degree coverage in trade mark matters, starting from assistance with the implementation and development of trade mark portfolios (including the clearing of international trade mark registers to ensure registration, the representation in opposition, appeal and post-grant proceedings), and extending all the way to the defence of rights in disputes. Assistance with the IP aspects of corporate transactions is also included in the group's expertise. European trade mark and design attorneys Gaëlle Loinger-Benamran, Malaurie Pantalacci , Mélissa Cassanet and Jean-Charles Nicollet jointly co-lead the IP department.

Other key lawyers:

Alain Hazan; Anne Messas


‘The TAoMA team has in-depth knowledge of my cases which allows them at any time to answer my questions with a substantiated analysis and always relevant recommendations. The firm is a real partner on which I know I can rely and that I have every confidence in. Their availability and responsiveness to providing me with answers make all the difference.’

‘What makes the difference for me is the ability to listen to the people with whom I work and the interest they have in our profession, the desire they have to understand how we work (Malaurie Pantalacci, Jean-Charles Nicollet). TAoMA understands and integrates the specificities of our profession in order to provide answers adapted to our particularities (Alain Hazan). The human size of the firm allows it to be in direct contact with the right person.’

‘TAOMA Partners is a firm that shows great availability, great listening skills and flexibility. The team has demonstrated great pedagogy with us. They were always at our disposal and all their qualities make them a unique firm.’

‘We really appreciated the availability and the pedagogy shown by the teams and especially Gaëlle Loinger, Anne Messas, Marion Mercadier, Anita Delaage and Jean-Charles Nicollet.’

‘Responsive team, available.’

‘It is a practice that combines faith in professional business skills with a human approach that allows problems to be resolved much more effectively than if it had been dealt with solely on a legal level. This is why we consider TAoMA Partners to have an exceptional approach, which places this intellectual and industrial property consulting firm above many others.’

‘Jean-Charles Nicolet: The sense of ethics which in a certain way touches on psychology to appease conflicts and allow a dialogue which finds amicable and acceptable solutions, in the end, for the adversary, for the benefit of the client. Proximity and availability for their clients which allows the latter to react quickly with a 360 degree vision. Marion Mercadier: Very responsive and professional in situations where you have to know how to deal with several parameters while being teacher on very technical subjects that the client does not master and does not necessarily understand at first.’

‘Perfect example of complementarity between intellectual property counsel and lawyers: Thanks to a perfectly calibrated team, the firm succeeds with elegance, efficiency, inventiveness and accuracy.’

‘Endowed with a great sense of listening, pragmatisn and proximity to the activity of companies, Gaëlle Loinger-Benamran quickly finds the solution that suits you.’