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Thomas Sundien

Zacco

2026_IP Stars IP Star.png
Position: Senior Partner, European Patent & Design Attorney
Rating:
  • Patent star
Practice Areas:
Patent litigation
Patent
Trade secrets/confidential information
Jurisdictions:
Industry Sectors:
Agriculture
Mechanical
Medical devices
Oil & gas
Construction
Languages:
English
Danish
Spanish
Profile

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

Address:
Arne Jacobsens Allé 15
Copenhagen S
2300
Tel:+4539488054 Email:Contact this practitioner Website:https://www.zacco.com