Press release dated October 12, 2023

BARDEHLE PAGENBERG and Xiaomi successfully
fight off attack for patent infringement by KPN
BARDEHLE PAGENBERG appeared for the first time for Xiaomi in German
patent litigation and achieved a stay of the infringement proceedings filed by
KPN until a first-instance decision in the parallel nullity proceedings.
On April 14, 2022, Koninklije KPN N.V. (KPN) sued Xiaomi Technology Germany GmbH(Xiaomi) for an alleged infringement of EP 2 291 033 (Patent) at the Regional Court ofDuesseldorf by, inter alia, certain Xiaomi smartphones (docket no. 4b O 26/22). KPN
asserted the Patent to be essential for the LTE and NR cellular standards.
On October 31, 2022, Xiaomi responded with non-infringement, FRAND, and invalidity
defenses and filed a nullity action against the German part of the Patent before theGerman Federal Patent Court in Munich asking the Regional Court of Duesseldorf toPrinzregentenplatz 781675 München
T +49.(0)89.928 05-0
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reject KPN’s complaint or at least stay the infringement proceedings until a first-instancedecision of the Federal Patent Court (docket no. 4 Ni 88/22 (EP)).
The Regional Court of Duesseldorf summoned the parties to a hearing scheduled for
September 28, 2023. Three days before that hearing, on September 25, 2023, the socalled qualified opinion of the Federal Patent Court pursuant to section 83 German Patent
Act was served on the parties with the prima facie finding that the Patent is invalid overcertain prior art although the Patent had already survived earlier EPO opposition
proceedings brought by a third party.
Upon request of Xiaomi and with the consent of KPN, the Regional Court of Duesseldorf
lifted the hearing and issued an order for the infringement proceedings to be stayed until
a final decision by the Federal Patent Court, independently of the question whether any of
the other defenses would have been successful. The Federal Patent Court will hear thenullity case on April 23, 2024.
Parallel patent litigation of KPN against OPPO is pending.

BARDEHLE PAGENBERG
Partnerschaft mbB
Patentanwälte Rechtsanwälte
Amtsgericht München
Partnerschaftsregister 1152
ISO 9001 certified
In cooperation with:www.yusarn.com
SingaporeRepresentatives of Xiaomi:
BARDEHLE PAGENBERG (Munich, Germany)
Prof. Dr. Tilman Müller-Stoy (Lead Attorney-at-Law (Rechtsanwalt), Certified IP Lawyer,Commercial Mediator (MuCDR), UPC Representative, Partner)
Dr. Jan Bösing (Attorney-at-Law (Rechtsanwalt), UPC Representative, Partner)
Sebastian Horlemann (Attorney-at-Law (Rechtsanwalt), Commercial Mediator (MuCDR),UPC Representative, Counsel)
Dr. Marius Fischer (German and European Patent Attorney, UPC Representative)

Representatives of KPN:
Axel Verhauwen, Krieger Mes Graf v. d. Groeben
Dr. Jens Vorberg, Bauer Vorberg Kayser
Regional Court of Duesseldorf (Chamber 4b):
Dr. Daniel Voß (Presiding Judge)
Maren Knappke
Dr. Schröder

BARDEHLE PAGENBERG combines the professional expertise of attorneys-at-law,patent attorneys, professional representatives before the European Patent Office,specialized trademark lawyers and qualified technical consultants. Our consulting services
are tailored to our clients' individual needs and the specific circumstances of each case.
Follow us on Twitter: https://twitter.com/bardehleIPPress contact:
Gabriela Tröger

T +49.(0)89.928 05-0

Marketing & PR

F +49.(0)89.928 05-444

Prinzregentenplatz 7

gabriela.troeger@bardehle.de81675 Munich

www.bardehle.com

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