Grégoire Triet est spécialisé dans le droit des brevets et des marques. Il dispose en particulier d'une grande expérience des contentieux nationaux et paneuropéens, notamment en matière de contrefaçon et de validité des brevets. En droit des brevets, il est intervenu dans les dossiers les plus récents de médicaments, notamment en matière de certificat complémentaire de protection. Il pratique également le droit d'auteur et le droit de la concurrence déloyale.

Il est membre de plusieurs associations professionnelles : l'AAPI (Association des Avocats de Propriété Industrielle) (2004-2007), l’AIPPI (Association Internationale pour la Protection de la Propriété Industrielle), l'EPLAW (European Patent Lawyers Association), l'APEB (Association des Praticiens Européens des Brevets), l'AIPLA (American Intellectual Property Law Association), l'INTA (International Trademark Association), l'APRAM (Association Française des Praticiens du Droit des Marques et des Modèles), l'ECTA (European Communities Trade Mark Association).

Grégoire Triet est systématiquement référencé parmi les meilleurs spécialistes dans le domaine de la propriété intellectuelle par les guides juridiques internationaux Chambers (depuis 2002), Legal 500, Who's Who Legal, WTR 1000 et Best Lawyers.

« Grégoire Triet has long-standing experience in IP matters, particularly assisting clients with patent litigation. He often acts for pharmaceutical and telecommunications companies. One client comments: "He is very responsive and very pleasant to work with. »
Chambers Europe 2019

« Grégoire Triet is active in patent infringement and copyright disputes and acts for a varied client list comprising companies from the pharmaceutical, luxury and food and beverage sectors. Sources report him to be 'a very good lawyer and a wonderful chap.' He is involved in many cross-border cases in Europe. »
Chambers Europe 2018

« Grégoire Triet focuses on patents and trade marks, as well as copyright law. He handles cases at both the national and international level and mainly acts for clients in the automotive, life sciences and telecommunications sectors. »
Chambers Global 2017

« Grégoire Triet is described by impressed peers as 'reliable, tough and good for his clients' and a 'top choice' for complex matters in the area. He is particularly well regarded for his pharmaceutical expertise. »
Who's Who Legal 2017

« Gide Loyrette Nouel ‘knows how to best defend its clients’ interests’. The ‘high-level’ team is involved in domestic and multi-jurisdictional patent proceedings in electronics, mechanical products and pharmaceuticals. The full-service team includes the ‘excellent litigators’ Grégoire Triet, Arnaud Michel, Emmanuel Larere and Raphaëlle Dequiré-Portier. Jean-Hyacinthe de Mitry was promoted to partner.
Legal 500 EMEA 2017

« Grégoire Triet is an expert patent litigator for both domestic and international disputes. He also assists clients with other areas of IP, including trade mark litigations and copyright cases. »
Chambers Europe 2016

« Shining on the contentious side, Grégoire Triet is a frequent face in Europe’s highest courts; healthcare, pharmaceuticals and life sciences are his industries of choice.  »
WTR 1000 2016

« For patent matters, Grégoire Triet ‘always hits the nail on the head’ and produces ‘very polished work'.
Legal 500 EMEA 2013