Our Firm

Santarelli is one of the leading intellectual property law firms in France.


Advising on matters involving patents, trademarks, industrial designs, as well as domain names, Santarelli helps clients protect and gain full benefit from their rights. Strengthened by an international network of experienced and established IP law firms, Santarelli has the ability to support its clients around the world.

Santarelli is recognized as a leading firm in all the French and international rankings.

Our Three Pillars

A Multi-disciplinary Approach

Santarelli’s reputation is built on the firm’s expertise in defending client IP rights and on its multi-disciplinary know-how of: i) patents for inventions (including patent applications, opposition proceedings, disputes, infringement, licensing and assignments), ii) trademarks (including verifying availability, filings, prior rights research, citations, opposition proceedings and disputes, licensing and assignments), as well as industrial designs, domain names, copyright, and computer and internet law.

Tailored Legal Advice

Santarelli’s services are focused on clients’ specific needs. Aware that the requirements of a multinational corporation are not the same as those of an individual, Santarelli has structured legal service ecosystems that are uniquely tailored to the needs of each client, whether it is the IP department of a large corporation, an SME, a start-up or an IP partner such as a foreign or national IP law firm. The firm advises clients in all sectors ranging from the most traditional to the most innovative.

Personalized Client Service

Santarelli’s IP attorneys are driven by a commitment to support clients in day-to-day matters as well as in exceptional and complex situations.


Tomorrow’s economy is already here.

It’s an economy that involves creativity, imagination, as well as ideas that push boundaries and bring people together.

More than ever intellectual property is a key factor in assessing a company’s worth. As such, much of the success and future of a company is built around it. With this in mind, Santarelli has developed legal services to provide each client with tailored advice and support that is perfectly attuned to his needs.

Santarelli’s priority is to provide our clients the support they need to strengthen and protect their intellectual property, thus making it a strategic business tool that can be used to conquer existing markets and expand into new ones.


Fundamental values shared by the partners and staff at Santarelli

Throughout the history of Santarelli, its partners and staff have forged the essential values of the firm, guiding its conduct and development.

These values are the foundation of the firm, and although they may be refined over time, their purpose remains the same :

  • To give the partners a shared vision of their professional practice while at the same time recognizing the need to continue developing the firm to meet the current expectations of clients.
  • To enable clients to work with a firm to which they feel close and in which they place their confidence due to its high quality services and its dependability.
  • To unite the firm’s staff in working together through a strong sense of belonging.


Santarelli believes that the human dimension of the IP profession is essential. Through the quality of its relations and the mutual respect between partners, staff and clients, Santarelli builds lasting bonds of confidence and accessibility.


Santarelli is committed to its clients’ needs over the entire course of their projects, developing a thorough understanding of the context and the issues at stake and responding in a way that is personalized, practical and appropriate.


Santarelli draws upon its accumulated experience and dual legal-scientific culture to evolve its practice and find innovative and practical solutions to complex problems.



Santarelli practices its profession in accordance with the highest standards, ensuring the provision of excellence to its clients.



Togetherness for Santarelli means not only proximity with its clients but also the promotion of a working culture in teams combined with a project approach to best address the complex and multidisciplinary issues of clients.



At Santarelli, independence of spirit and dedication to clients’ interests ensures the objectivity and relevance of the advice and the services provided.


Marc Santarelli


Marc Santarelli (1929-2010)

Founder of the eponymous firm in September 1977.

A Patent, Trademark and Design Attorney, authorized representative before the European Patent Office and the Office for Harmonization of the Internal Market, Marc Santarelli held an engineering degree from the prestigious Arts and Manufactures school, and a Master of Law.

Having started in the profession in 1964, for over 45 years his dual background as a lawyer and engineer predestined him to devote the majority of his professional life to defending clients in disputes and litigation.

Marc Santarelli was also very involved in the activities of various professional organizations both in France and internationally, including his roles as President of the French national societies for IP Attorneys, the Compagnie Nationale des Conseils en Brevets d’Invention (CNCBI) and the Association des Conseils en Propriété Industrielle (ACPI), as well as President of the French chapter of the International Association for the Protection of Intellectual Property (AIPPI). At the international level, he was the Secretary General of the International Federation of Intellectual Property Attorneys (FICPI) and President of several international commissions within the AIPPI. He was named honorary member of both the FICPI and the AIPPI, and was named Knight of the National Order of Merit.

In 2003 Rinuy, Santarelli and Bonnet-Thirion merged to form Santarelli.

Through this union, specific know-how and the culture of excellence were passed on and today the firm thrives from this joint heritage.

Bonnet-Thirion was founded in 1852 by Charles Thirion, author of several articles and books on Intellectual Property, who played a key role in promoting the signature of the International Paris Convention for the Protection of Industrial Property in 1883. Santarelli is committed to perpetuating his intellectual rigor.

The firm had developed particularly strong expertise in the areas of machinery, electrical equipment and physics.

Rinuy, Santarelli, which was founded in 1977 by Guy Rinuy and Marc Santarelli, mainly served international clients and was highly recognized for its expertise in the fields of chemistry, pharmaceuticals, biotechnology, mechanics and electronics.


MIP 2018



LEGAL 500 PARIS 2018


IAM 2018

TOP 3 – Highly recommended

LEGAL 500 EMEA 2017