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Stéphanie CELAIRE


French Patent Attorney

European Patent Attorney

Life Sciences & Chemistry Department
Tel: +33 1 44 29 35 00


French Patent Attorney

European Patent Attorney


Master’s in Engineering (Institut National Agronomique Paris-Grignon)
MS in Biochemistry (Institut Gustave Roussy, Paris X- I.N.A P-G)
CEIPI Graduate (Distinction in Patents)
Master of Business Law (Paris I)


After three years of academic research in France (Post-Doc at the IGR) and six years’ experience and a patent engineer in an IP Law firm, Stéphanie CELAIRE joined REGIMBEAU in 2008 and became Partner in 2014.
Stephanie has a vast experience in European oral proceedings and infringement litigation in France, especially in the pharmaceutical and agribusiness fields.

Technical and scientific fields

Pharmaceuticals, Formulations, Galenics, Cosmetology, Agribusiness and Agronomy, Biochemistry

Teaching / Representative positions

  • Lecturer at the ESIEE, specialising in Biology
  • Lecturer at AgroParis Tech  


​Nominated as one of the world's leading patent practitioners by "Who's Who Legal: Patents" 2016

Recent contributions and participations


FORMATION : The basics of patent procedures

Regimbeau organizes a training on the theme "The basics of patent procedures". Intervention of Stéphanie CELAIRE, Partner.
26th Jun 2018

IP Days 2017 P2i

Contribution by Stéphanie CELAIRE, partner, at the round table on unitary patent at the IP & Innovation Days organised by CCI Alsace and 3AF in collaboration with CCI France.
12th Oct 2017

France Biotech conference

Participation of Stéphanie CELAIRE at the France Biotech conference on innovation in agrobiotech
11th Sept 2017

Is 2016 the final stretch before the entry in force of the Unitary Patent and the Unified Patent Court?

REGIMBEAU is organising a conference on "Is 2016 the final stretch before the entry in force of the Unitary Patent and the Unified Patent Court ". Contributions from BOUTARIC and Stéphanie CELAIRE, Partners and Sylvain THIVILLIER, European and French Patent Attorney.
9th Jun 2016

Rendez-vous Carnot

Particiâtion of Stéphanie CELAIRE, Partner and Jean-Charles NICOLLET at the Rendez-vous Carnot
18th Nov 2015


Participation of Stéphanie CELAIRE and Gabrielle FAURE-ANDRE to the IFSBM-IGR seminar on "The role of innovation in Cancer Therapeutics: Today and Tomorrow"
21th May 2013

Third Party Observations

REGIMBEAU is organising a breakfast seminar on "Third Party Observations: A weapon to integrate into your IP strategy?" Interventions by Francis AHNER and Stéphanie CELAIRE
26th March 2013

Recent Publications

PACTE Act : What will change for your Industrial Property in France ? When ?

By Stéphanie CELAIRE, Partner
The PACTE Act for the Business Growth and Transformation Action Plan was published in the Official Journal on May 23, 2019 (Law No. 2019-486 of May 22, 2019). This text embodies the flagship economic reform of the government of Emmanuel Macron, led by the Minister of Economy, Bruno Le Maire. Its primary objective is to improve the growth of small and medium-sized French businesses.
Published on: 18th Jul 2019

The European Patent Office has Published the “Unitary Patent Guide”

By Stéphanie CELAIRE, Partner
The European Patent Office (EPO) has published the 1st edition of the "Unitary Patent Guide." This guide outlines the texts concerning applications for European patents with unitary effect, annual fees, entries in the Register for Unitary Patent Protection, languages and remedies in the event that the unitary effect is rejected. It also details the practical means by which these procedures will be handled by the EPO on the basis of the rules relating to Unitary Patent Protection (UPR).
Published on: 23th Aug 2017

Book: Unitary Patent and the Unified Patent Court (French only)

​The Patent system in Europe will undergo major changes with the upcoming entry into force of the agreements establishing the Unified Patent Court and the Unitary Patent. Download the outline (french only) or order the book on the link below.
Published on: 24th Jan 2017




Plant Breeders’ Right



Due Diligence - Strategy

IP Prosecution


Portfolio management

Freedom to operate


Press release

Who's Who 2016: Survey results

Who’s Who Legal has published the results of its 2016 survey, of law firms and clients that identifies the preeminent patent and trademark practitioners around the world. REGIMBEAU is pleased to announce that Jérôme COLLIN, Jean-Robert CALLON DE LAMARCK, Christian TEXIER and Stéphanie CELAIRE have been recognised in the “Patents” section and Evelyne ROUX and Martine BLOCH-WEILL in the “Trademarks” section.
Published on: 29th Aug 2016