Guylène Kiesel Le Cosquer White Collar Crime - France

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Cabinet Plasseraud
66 rue de la Chaussée d'Antin
75440 Paris

Tel: +33 (0)1 40 16 70 00
Fax: +33 (0)1 42 80 01 59


After starting her career as an in-house lawyer in the electronics industry, Guylène joined Cabinet PLASSERAUD in 1990. She actively developed the firm’s legal department and became a partner of the firm.

In addition to managing her own portfolio of clients and overseeing cases of other IP professionals in the legal department and drawing on her broad experience in Industrial Property, she is a regular speaker conferences in France as well as abroad on a host of subjects (Audit and optimising value of IP portfolios, Seizures by Customs Authorities and seizure of counterfeiting products, Community designs, Surveys in trademarks cases and what do they prove, Good trademark use practice, Overcoming the obstacles of trademarks, Enforcement of IP rights in France and Europe, Designs: comparative law Europe- Canada, How best to combine marketing objectives and legal imperatives?…).

Guylène has been elected as President of the French Intellectual Property Attorneys Association (2017/2018) and is the first trade mark Attorney to hold this position. Before being elected as President, she had fulfilled various roles within the French Intellectual Property Attorneys Association and in particular as Vice President (1997/1998) and member of its Communication Committee.

She was a Member of the Disciplinary Board as well as of the Advisory Board for many years. She also coordinated the Trade Mark and Design Attorney professional qualification round-table educational program during 16 years.

She is currently a member of major international IP associations: INTA, ECTA, AIPPI, FICPI …

Cabinet Plasseraud:

Founded in 1906, Cabinet Plasseraud is one of the leading European firms in the IP sector, and among the largest in France, with offices in Paris, Lyon, Lille, Dijon, Bordeaux,Toulouse, Angoulême, Shanghai and Prague. Our team of over 110 Attorneys (Patents, Trademarks & Designs) ensures that our clients’ needs are taken care of by specialists in all technical and legal areas.

Our Attorneys are all highly technically and/or legally qualified and include:

  • French Patent Attorneys
  • European Patent Attorneys
  • French Trademark & Designs Attorneys
  • European Trademark & Designs Attorneys

We are a full service IP firm, and our activities include:

  • Filing and prosecution of patents, trademarks and designs up to grant & registrations,
  • Opposition and appeal proceedings at the EPO, EUIPO and the National Institute of Industrial Property,
  • Freedom-to-operate opinions,
  • Patent Searches,
  • Seizure infringement actions and other legal proceedings concerning IP rights,
  • Contracts – Negotiation & Drafting,
  • Domain names – New technologies,
  • Geographical indications,
  • Due diligence reports,
  • Financial evaluation of IP rights,
  • Maintenance fees.

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