Hollow fibre dialyser – X ZR 50/23 (Federal Supreme Court (BGH)

Decision Keyword:

Hollow fibre dialyser

Law applied:

EPÜ Art. 54, Art. 56

Summary: 

If a claim provides that certain dimensions of the protected product must satisfy a specific mathematical formula, it is sufficient for the protected subject matter to be considered novel or obvious if a specific embodiment described in the prior art has or suggests dimensions that fall within this formula.

Federal Supreme Court (BGH), Judgment of 13 May 2025 – X ZR 50/23

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