Legal Economist

Paris +

Céline Ruste is a legal economist with significant experience assessing economic damages in commercial disputes in court proceedings and arbitration involving unfair competition, breach of contract, patent litigation, and other intellectual property rights. She also has experience in the valuation of patents and trademarks.

Céline advises on the identification and the assessment of damages and provides estimates on financial risks and potential losses that may be incurred. She assists partners and lawyers with case strategy by providing economic and financial insights to matters.

Céline is involved in licensing negotiations of intellectual property rights, implementation of employee inventions remuneration policies, assessment of wasted costs, lost profit, loss of chance, reputation damage, and IP and commercial disputes. She has worked on matters involving various industries such as automotive and aerospace, electronics, consumer goods, cosmetics and health, telecommunications, and video games.

Prior to joining Jones Day in 2016, Céline worked with the litigation team at a Big Four accounting firm and in patent litigation at a French firm.

Céline is a member of the Licensing Executives Society (LES) and its IP Valuation Committee.


Naos defends patent infringement action in field of cosmetics
Jones Day successfully represented Naos in defense of a patent infringement action relating to its sunscreen products.

Turkish franchisee arbitrates wrongful termination dispute with French franchisor
Jones Day is representing a Turkish franchisee in the quick service restaurant business against a French franchisor in a wrongful termination dispute in an ICC arbitration seated in Paris involving French and Turkish intellectual property and trademark law.

Naos SAS defeats patent infringement claims over treatment of atopic skin disorder
Jones Day successfully represented Naos SAS in defense to an action for alleged infringement of two patents regarding products for the treatment of atopic skin disorder.