Supercomputer company Partec and its exclusive licensee BF exaQC AG are exerting pressure on semiconductor manufacturer NVIDIA through a third UPC lawsuit, seeking an injunction in 18 countries. The patent in question pertains to the core technology of artificial intelligence supercomputers (Case Number: ACT_34542/25).

The lawsuit is based on Partec's European patent [EP 3 614 263], which pertains to microprocessors used in AI supercomputers and their collaboration to provide AI functionality. The European Patent Office (EPO) granted the patent with unitary effect in July, and Partec and BF exaQC AG filed the lawsuit a few days later.

According to a press release, Partec is seeking an injunction requiring NVIDIA to cease distribution of products critical to artificial intelligence within its DGX product portfolio in 18 European countries covered by the patent. The company is also seeking information on sales activities to date and damages.

In October 2024, Partec filed a lawsuit against NVIDIA in the UPC alleging infringement of [EP 3 743 812] and [EP 2 628 080]. [EP 2 628 080]. The former protects “dynamic allocation of heterogeneous computing resources determined by application runtime.” The latter protects “computer cluster arrangements for processing computational tasks and methods of operation.” Partec claims both patents are critical for high-performance computing and AI applications.

In March 2025, Partec filed a second lawsuit based solely on [EP 080]. The Second Trial Chamber of the Munich Regional Court (led by Chief Judge Ulrike Voss) is handling both lawsuits.

However, the Opposition Division and the Boards of Appeal of the European Patent Office revoked [EP 080] due to formal errors. However, the patent remains valid in many countries outside Europe.

Partec's dispute with NVIDIA in the UPC and its patent infringement lawsuit against Microsoft in the United States are closely related. The Markman hearing (claim construction hearing) for the latter case will take place in one month (September 12, 2025).