Ipsilon is recommended for trade mark and patent protection work. The firm is led by European patent attorney Valérie Feray. The patent leaders in the firm are Maxime Petit, who specialises in mechanics and physics; Wilfried Peguet, who deals with chemistry work; Ghislain Demonda, a computer science and telecoms specialist; Valerie Godineau, who specialises in mechanical engineering and physics; and Sylvie Hervouet-Malbec, who handles electronics and telecoms work. Other notable patent practitioners are Pierre Jeannequin and Laurent Nuss. Géraldine Calvet and Hugues Dutreix are practitioners to watch.
For trade marks, clients have senior brand specialists such as Florence Briec, Michèle Dietrich-Schnell, Marion Vidal-Lachaud and Clémence Touiller. The partners are supported by junior practitioners including Audrey Lachaud and Guillaume Dubard.
The firm has grown in size and presence in Europe thanks to the financial backing of Waterland Private Equity. In March 2025, the firm
announced a 'strategic partnership' with the Benelux firm NLO.
