Julien works on intellectual property matters (copyright, patents, design and trademarks) and has gained a specific knowhow on new information technologies and media law. His clients are large and SME companies, as well as startup companies and designers who are assisted and represented by Julien in dispute resolution cases and for projects concerning the protection, securing and added value to their innovation, marketing and communication strategy. Julien is known as an "excellent lawyer with a sharped knowledge of the rules and jurisprudence" (Legal 500).
Julien is a Fellow at IRPI (University of Paris II Panthéon-Assas) where he shares his expertise in trademark law. He also teaches intellectual property and advertisement law (ESCP Europe / ISTEC) and publishes in many scientific books and journals in its core activities (JurisClasseur LexisNexis, Revue Propriétés Intellectuelles).