Boult Wade Tennant
Bulletins » You snooze, you lose at the UPC: Court rejects new arguments presented late in the procedure

A recent decision of the Düsseldorf Local Division of the UPC hammers home its aim of achieving efficient and front-loaded procedure in Europe. The case reaffirms that:

  • procedure is front-loaded at the UPC;
  • thorough and early analysis is essential in order to present the best case at the UPC; and
  • parties should present their full case from the outset.

The issue at hand
In this case a new line of argument was presented only in the oral hearing relating to added matter and the counterclaim for revocation; in particular whether specific embodiments in the specification supported the general concept on which the claim is based. The specification was lengthy (original publication was around 100 pages) and the arguments were based on completely different passages of the document to those considered previously.

The decision
Accordingly, the Court deemed that such support could easily have been presented in accordance with the time limits set by the Rules of Procedure (RoP). The new line of argument was therefore rejected pursuant to Rule 9.2 RoP.

It was emphasised that neither the Court nor the other party may be forced to deal with the further argument(s) from scratch. Notably, the decision explicitly sets out that admittance of new arguments presented so late in the procedure would undermine the concept of the front-loaded procedure established by the RoP. In any case for completeness the Court also stated that the argument was not convincing on the merits.

Summary
This case highlights the UPC’s strict approach to ensuring a front-loaded procedure, in its decision and its explicit comments to that effect.

It will be interesting to see where the line is drawn regarding late-filed arguments as UPC case law continues to develop, and whether the Court will continue to take a strict approach. For example, would the decision have been different here if the arguments were clearly relevant or even if the document in question was much shorter? Based on the Court’s explicit comments, this seems unlikely, and there follows our key takeaways…

Key takeaways

  • Commit to performing a thorough analysis and presenting all relevant arguments early in the procedure
  • UPC litigation favours preparedness

UPC number: UPC_CFI_26/2024; decision dated 30 July 2025

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Aerospace
  • Commercial aviation
  • Defence and security
  • Space and satellites
  • Unmanned aerial vehicles
Artificial Intelligence and Machine Learning
Automotive
  • Autonomous vehicles
  • Electric vehicles
  • Engines
Biotechnology
  • Antibody engineering
  • Antibody manufacture and formulation
  • Bioinformatics
  • Biosimilars
  • Drug delivery
  • Gene editing (e.g. CRISPR)
  • Genomic and molecular tools and methods
  • GM crops
  • Immuno-oncology (e.g. checkpoint inhibitors; modified T cells)
  • Next generation sequencing
  • Nucleic acid synthesis
  • Personalised medicine/disease biomarkers
  • Recombinant protein production and purification
  • Stem cell therapies
  • Supplementary protection certificates (SPCs)
  • Synthetic biology
  • Therapeutic antibodies
  • Vaccinology (e.g. viral vectors; mRNA vaccines)
  • Women’s health products
Chemicals
  • Agrochemicals
  • Catalysts
  • Dispersions and colloids
  • Lubricants
  • Polymers and plastics
Communications and Networks
  • Cloud computing
  • Internet of things (IOT)
  • Oceanography, marine
  • Wired and wireless networks
Computing and Software
  • Artificial intelligence and machine learning
  • Bioinformatics
  • Blockchain and distributed ledgers
  • Communications and networks
  • Computer games
  • Data and software security, cryptography and digital rights management (DRM)
  • Data management and storage, databases and data compression
  • Digital assistants, virtual assistants and software agents
  • Fintech and adtech
  • Machine vision
  • Metaverse, virtual reality (VR) and augmented reality (AR)
  • Motor capture
  • Multimedia, audio/video processing and animation
  • Natural language processing
  • Quantum computing
  • Robotic process automation
  • Search engines
  • Signal processing
  • Software applications and systems, mobile applications, user interfaces
Consumer Goods and Retail
  • Anti-counterfeit devices
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  • Moda
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Electronics and Electrical Devices
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Energy and Green Technologies
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Food and Beverage
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Industrial Manufacturing and Processing
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Materials
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Medical Devices and Diagnostics
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Pharmaceuticals
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  • Pharmaceutical formulations
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  • Small molecule pharmaceuticals
  • Supplementary protection certificates (SPCs)
Trade Marks
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  • Financial services
  • Mechanical engineering
  • Mechanical products
  • Services
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Relevant sectors