Stéphanie Massin Célaire

Managing Partner
French English German
経歴

After three years of academic research in France and six years’ experience as a patent engineer in an IP Law firm, Stéphanie Massin Célaire joined Regimbeau in 2008 and became Partner in 2014.

Stephanie has a vast experience in opposition proceedings, European oral proceedings and infringement litigation, especially in France, especially in the pharmaceutical and agribusiness fields.

In particular, Stéphanie defended the interests of her clients in disputes in several European countries while simultaneously representing them before the EPO in opposition proceedings involving numerous pharmaceutical companies.

Stéphanie also has expertise in freedom-to-operate analysis, global strategic support for start-ups and due diligence.

Stéphanie was a member of the CNCPI board then treasurer of the CNCPI for 6 years.

資格
  • French Patent Attorney
  • European Patent Attorney
  • Representative before the UPC
教育
  • 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)
Know-how
  • 知財監査
  • 知的財産権の取得・戦略立案
  • 知的財産権の権利化・ポートフォリオ管理
  • 訴訟提起前交渉・訴訟
  • クリアランス

講師活動等

  • Lecturer at AgroParis Tech
  • Lecturer at Saclay University (Master 2 : Protection and Management of Innovation in Healthcare)

受賞歴

  • Recognised as one of the world’s leading patent practicioners by “Who’s Who Legal: Patents” in 2016, 2021, 2022, 2023 and 2024
  • Recognised as one of the world’s leading patent practitioners by “Lexology Index: Patents” in 2025 and 2026
  • Distinguished in 2020, 2021, 2022, 2023 and 2024 in the “Recommended individuals” category by JUVE Patent (Field of expertise: Chemistry, Pharma and biotechnology)
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