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‘The best inventions are often obvious, in retrospect.’
Gijs de Iongh

Gijs de Iongh

  • Engineering
  • European and Dutch Patent Attorney, European Patent Litigator
  • Senior Associate

Gijs de Iongh studied Mechanical Engineering (BSc) and Control Engineering (MSc) at Delft University of Technology. For his master graduation project he conducted research in the field of adaptive optics, particularly regarding wavefront shaping methodologies for light sheet microscopy and fiber optic endoscopy applications. Apart from the mandatory curriculum he studied subjects on optics, signal processing and medical imaging and attended the Royal Institute of Technology in Stockholm to focus on Biomedical Engineering.

In his capacity as European Patent Litigator, Gijs is allowed to act as UPC representative.

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Working experience

  • Patent Attorney, V.O. (June 2022)
  • Trainee Patent Attorney (November 2017)

Education

  • BSc Mechanical Engineering, Delft University of Technology
  • MSc Systems & Control, Delft University of Technology
  • Minor, Biomedial Engineering, Royal Institute of Technology in Stockholm

Directories

  • Recognized as ‘Rising Star’ (2025) by Managing IP

Publications

  • Dean Wilding, Gijs de Iongh, Oleg Soloviev, Paolo Pozzi, Gleb Vdovin, Michel Verhaegen, “Rapid identification of coherent pupil functions from multiple intensity measurements”, Proc. SPIE 10416, Optical Coherence Imaging Techniques and Imaging in Scattering Media II, 104160G (1 August 2017)

Languages

  • Dutch (native language)
  • English (fluently)
  • German (basic)
  • French (basic)
  • Swedish (basic)
  • Spanish (basic)

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News

Trade secrets: the importance of discretion

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T 873/24 and the reach of G 1/24 claim interpretation in added-matter analysis (Board of Appeal 3.3.05) 

In T 873/24 (Board of Appeal 3.3.05, oral proceedings 3 February 2026), the Board indicated that it would refer questions to the Enlarged Board of Appeal (EBA) on whether (and how) the Enlarged Board’s claim-interpretation guidance in G 1/24 extends to the assessment of added subject-matter under Article 123(2) EPC (and, by implication, Article 76(1) […]Continue reading

Düsseldorf Local Division adopts The Hague’s four-step test for infringement by equivalence and applies a structured “feature-by-feature function” analysis 

In its decision in Wonderland v Cybex (UPC_CFI_807/2024 and UPC_CFI_334/2025, Local Division Düsseldorf, 27 May 2026), the Düsseldorf panel addressed — in detail — the assessment of patent infringement by equivalent means under Art. 69 EPC and the Protocol.Continue reading