Johan Renes is a Partner, and a European and Dutch Patent Attorney at Plasseraud IP and Head of Amsterdam office.
Johan has over 30 years of experience in life sciences, specializing in patent litigation and IP strategy. He has handled complex international cases across sectors such as biotechnology, pharmaceuticals, and medical devices, with expertise in Europe, the US, Japan, and Australia. On the strategy side Johan has guided companies like Crucell and Merus from start-up to IPO.

Carole Sellin is a Partner and Patent Attorney at Plasseraud IP. Her activity is mainly devoted to patents in the field of life sciences, genetic and molecular engineering, and the plant world. Carole works for major universities, foreign pharmaceutical companies, and well-known French companies. She has taken part in numerous oral proceedings and oppositions before the EPO. She also advises patent holders in the field of Supplementary Protection Certificates (SPCs). She is a member of AIPPI and GRAPI. Carole joined EGYP, a Plasseraud IP Group company, in 2000.
 

Anne Desaix is a Partner and Patent Attorney at Plasseraud IP. Her work mainly focuses on patents in the field of life sciences. She represents major French and international research laboratories and innovative SMEs. She has an extensive expertise in long-term protection strategies and constitution of patent portfolios in pioneering technologies. She also advises patent holders in the field of Supplementary Protection Certificates (SPC). Anne has acquired a great wealth of experience in handling complex proceedings before the EPO and before the French courts.

Nathalie is a Partner, French & European Patent Attorney and Chemistry Patent Practice Group Leader at Plasseraud IP. She works on cases relating to cosmetics, pharmaceuticals, polymers, petrochemicals and catalysis for individuals, companies and research institutes.

Stéphane Bezac is a Partner and Head of the Grenoble office at Plasseraud IP.

For over 20 years, he has dedicated his career to innovation and the practice of Intellectual Property within the industry, notably as Head of IP for the international group SNF. Drawing on this extensive experience, he supports clients in developing their IP strategies and protecting their innovations.

Raphaël Fleurance is a Partner and Head of the Lyon office at Plasseraud IP. He is a French and European Patent and Trademark Attorney. He works in the areas of chemistry, physics and medtech, for the drafting, prosecution and defense of patents, trademarks and designs, as well as IP contracts. He began his career in the Direction Générale de l’Armement for a year. Then, he moved to the IP department of Salomon (sport equipments) in 1986/1987 and afterwards he worked for three years at the IP department of Roquette Frères, a leading multinational firm in the agrochemical industry.

Seowon Park is a Partner and a Korean IP Attorney within Plasseraud IP. 

Head of Korea Team, she is a graduate of Yonsei University in Korea, where she studied biology. She began her career in a Korean intellectual property law firm where she was responsible for prosecutions and appeals in the fields of chemistry, pharmacy and biology. 

She also has several years of experience as an IP expert in public organisations and as an IP leader in the chemical industry. 

She joined Plasseraud IP in 2017 and was appointed partner in 2025.

Catherine Touati is a Partner and a Patent Attorney at Plasseraud IP. She is involved in the fields of chemistry, cosmetics, food processing, and more specifically in pharmaceuticals and phytopharmacy. She deals with case files, conducts freedom of operation studies and manages litigation files. She has developed a particular expertise in Supplementary Protection Certificates (SPC) and Plant Variety Rights (PVR). She joined Plasseraud IP in 1996, after a first four-year experience in an IP law firm, where she trained in patent and trademark law. She became a Partner in 2011.

Frédéric Niemann is a Partner and Patent Attorney at Plasseraud IP. He is active in the fields of biotechnology, pharmaceuticals, chemistry and medtech. He was an examiner at the European Patent Office from 2000 to 2005 (in The Hague). He was specialized in the fields of biotechnology (gene therapy, vaccines, and diagnostics). Frédéric joined Plasseraud IP in 2005.

Nadine Rocaboy is a Partner at Plasseraud IP since 2018. 

She assists SMEs, multinationals and research institutes in the development and management of their patent portfolio, in particular in chemistry and pharmaceuticals. 

She has a long experience before the European Patent Office including oral proceedings, opposition and appeal proceedings and assists clients in patent litigation. 

She founded Plasseraud IP Start-up to support young entrepreneurs in their IP strategy and the filing of their patents.