Our team
All of LE GUEN & ASSOCIÉS’ patent engineers have gained industry or research experience before joining the firm. This prior experience means that they have acquired a practical understanding of technology, innovation and requirements in terms of industrial property of industrial companies and of research institutions.
As a reflection of our commitment to provide the soundest possible advice from both a legal and technical perspective, LE GUEN & ASSOCIÉS presents to its clients profiles of its qualified and technically experienced patent engineers and legal experts.
Patents

Pascal Coudray
Partner
- French Patent Attorney
- European Patent Attorney
- Engineer, Electrical Engineering, INSA Rennes
- Member of the AIPPI
- Electronics, Telecommunications, New Information and Communications Technologies, Signal Processing

Stéphane Bizet
Partner
- French Patent Attorney
- European Patent Attorney
- Engineer, Electrical Engineering, INSA Rennes
- Electronics, Telecommunications, IT, New Information and Communications Technologies, Physics, Optics

Christophe Truffaut
Partner
- French Patent Attorney
- European Patent Attorney
- Engineer, ENSMA Poitiers
- Mechanical Engineering, Electrical Engineering, Optics, Aeronautics

Olivia Calvez
Partner
- French Patent Attorney
- European Patent Attorney
- Diploma of Higher Specialised Studies (DESS) in Biotechnologies, Paris VII
- Biotechnologies, Healthcare, Agri-Foodstuffs, Cosmetics, Environment

Anne Lorette
French Patent Attorney
- European Patent Attorney
- PhD in Image Processing /li>
- Engineer, ENSEEIHT Toulouse
- Image Processing, Data Compression, IT, New Information and Communications Technologies

Olivier Horr
French Patent Attorney
- MSc (Master 2) in Electronics and Telecommunications
- Electronics, Telecommunications, IT, New Information and Communications Technologies, Physics, Mechanical Engineering

Cécile Joulaud
Patent Engineer
- PhD in Engineering Sciences
- Engineer, Materials Engineering, INSA Lyon
- Optics, Physics, Engineering Sciences, Materials, Nanotechnologies

Claude Monnier
Patent Engineer
- Ingineer, CESI Paris
- Mechanical Engineering
Trademarks and Designs

Denis Le Guen
Managing Partner
- French Trademark and Design Attorney
- European Trademark and Design Attorney
- Member of INTA – ECTA – L.E.S. – AFDIT – AIPPI

Maëlle Guguen
Partner
- French Trademark and Design Attorney
- European Trademark and Design Attorney
- CEIPI – Trademarks and Designs
- Master’s in Private Law, Rennes
- Member of APRAM – TRADEMARKS – REPI

Fabienne Lavazais
Partner
- French Trademark and Design Attorney
- European Trademark and Design Attorney
- Diploma of Advanced Studies (DEA) in Intellectual Property Law, Nantes

Anne-Sophie Japhet
Partner
- French Trademark and Design Attorney
- European Trademark and Design Attorney
- CEIPI – Trademarks and Designs
- Master’s in Private Law, Rennes
- Member of APRAM

Julie Darchy
Legal Expert
- French Trademark and Design Attorney
- European Trademark and Design Attorney
- CEIPI – Trademarks and Designs
- Master’s 2 in Company Law and Contract Law at Lille, specialising in Industrial Property Law and Innovation Strategy
- Master’s in Private Law, Criminal Sciences at Lille