Thomas Sundien

Zacco - Denmark

Senior Partner, European Patent & Design Attorney

Arne Jacobsens Allé 15
Copenhagen S


Patent star 2022




Practice areas:

Patent litigation
Trade secrets/confidential information

Industry sectors:

Medical devices
Oil & gas

Starting his career as a patent attorney in 1988, Thomas’ expertise cover European and US patent prosecution matters, as well as in utility model and design registration cases. He has gained significant experience in prosecuting cases before the EPO opposition and appeal boards and is regularly involved in patent infringement litigation. Thomas is also an acting technical judge for IP matters at the Copenhagen Commercial & Maritime Court and at the Courts of Appeal.

Thomas is passionate about the advancement of the IP profession and regularly contributes his time to guiding students at the Technical University of Denmark (DTU). Acting as an IP mentor and ‘sounding board’, he helps them to recognise patent potential and identify commercial viability within their ideas, as well as running regular Q&As into both patent implications and the application process. He also makes use of his experience and background to help them overcome technical challenges whenever he can.

Thomas has specialist technical knowledge within the fields of oil drilling technology, packaging, conveying systems, medical devices, agricultural implements, shipbuilding, household equipment and building materials, among others.

During his career, Thomas has represented numerous prestigious international clients and has been described as "a wellspring of insight and analysis on EP and US patent litigation" with “varied experience and meticulous drafting skills that make him a popular choice for mechanical engineering assignments”.

Thomas holds a M.Sc. in Structural Engineering (1988) and a B.Comm. (1992).

Year Joined Firm: 1995

Network Memberships: FICPI, ADIPA