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UPC CFI 515/2025

Jun 13, 2025·EP3835965: LOGIC CIRCUITRY

Case details
Status
Case Closed
Action
Provisional measures
Category
Provisional Measures
Parties
Claimants
Reps: Richard Wunderlich (Freshfields)
Respondents
Reps: Jochen Bühling (KRIEGER MES Partnerschaft mbB)
Division
Dusseldorf LD
Judges
Technology
Computing & AI
Language
English
First decided
Oct 17, 2025
Last decision
Feb 2, 2026
Decisions
  • 2026-02-02
    Generic Order

    The Düsseldorf Local Division issued a further procedural order under R. 275.2 RoP in HP's logic circuitry patent provisional measures proceedings, addressing service-related steps following the December 2025 preliminary injunction order.

    Legal issues:Service order (R. 275.2 RoP)Follow-up to preliminary injunction
  • 2025-12-19
    PI grantedPreliminary injunctionApplication for provisional measures

    The Düsseldorf Local Division granted a preliminary injunction against Andreas Rentmeister and Shenzhen Moan Technology for infringement of HP's logic circuitry patent EP 3 835 965, deciding on the merits after the defendants failed to lodge an objection following deemed service.

    Legal issues:Preliminary injunction by defaultLogic circuitry / replaceable print components
  • 2025-11-11
    Application for provisional measures

    The Düsseldorf Local Division deemed service of the HP preliminary injunction application on Shenzhen Moan Technology Co. (Defendant 2) to be good service under R. 275.2 RoP, after the Chinese central authority failed to process the Hague Convention request for several months.

    Legal issues:R. 275.2 RoP deemed good serviceHague Convention service failure - Chinese Central Authority inactionAlternative service in provisional measures proceedings
  • 2025-10-17
    PI grantedPreliminary injunctionApplication for provisional measures

    The Düsseldorf Local Division granted a preliminary injunction against Defendant 1 (Andreas Rentmeister e.K.) prohibiting the sale and distribution of ink cartridges allegedly infringing HP's patent EP 3 835 965 B1 on logic circuitry for replaceable print apparatus components, with penalty payments of up to EUR 250,000 per day.

    Legal issues:Preliminary injunction for printer cartridge logic circuitryI2C serial data bus interface patentOpt-out withdrawal and UPC jurisdiction
Documents
Document titleDatePublic
action.phaseChange.caseClose2026-02-11Not public
action.issueOrder.order2026-02-02Not public
Order2026-02-02Public
Receipt2026-01-13Not public
Cover sheet2026-01-13Not public
Exhibit document Claimant2026-01-13Not public
Application document Claimant2026-01-13Not public
action.issueDecision.decision2025-12-19Not public
Final Order2025-12-19Public
Cover sheet2025-12-12Not public
Application document Claimant2025-12-12Not public
Receipt2025-12-12Not public
action.publishOrderDecision.case2025-11-11Not public
Order2025-11-11Public
action.issueOrder.order2025-11-11Not public
Order2025-11-11Not public
Cover sheet2025-11-07Not public
Application document Claimant2025-11-07Not public
Exhibit document Claimant2025-11-07Not public
Exhibit document Claimant2025-11-07Not public
Exhibit document Claimant2025-11-07Not public
Exhibit document Claimant2025-11-07Not public
Exhibit document Claimant2025-11-07Not public
Receipt2025-11-07Not public
action.issueOrder.order2025-10-20Not public
Order2025-10-20Public
Cover sheet2025-10-14Not public
Further pleadings2025-10-14Not public
Receipt2025-10-14Not public
Cover sheet2025-10-10Not public
Application2025-10-10Not public
Exhibit2025-10-10Not public
Receipt2025-10-10Not public
Receipt2025-07-25Not public
25-07-24_-_EP_965_-_Request_for_Decision_by_Default_-_App_33608 _2025_-_CFI_515_20252025-07-24Not public
Receipt2025-07-24Not public
2025-07-23_Reply_application_provisionalmeasures_ACT_27444-2025_UPC_CFI_449-2025_signedJB1807252025-07-23Not public
Acknowledgement-of-lodging2025-07-23Not public
2025-07-23_Application_27444-2025_changedetailsinpendingcase_16.1b2025-07-23Not public
Outcome of the Order2025-07-21Not public
Clarification of a time limit2025-07-21Public
Receipt2025-07-21Not public
Notification of representation and request for extension of deadline2025-07-18Not public
Notification Of Service2025-07-01Not public
Service2025-07-01Not public
Acknowledgement of access to case2025-06-27Not public
Panel-Appointment2025-06-17Not public
Letter-for-Service2025-06-16Not public
Letter-for-Service2025-06-16Not public
Notice-to-Accompany-Service-of-Order-for-Measures2025-06-16Not public
Notice-to-Accompany-Service-of-Order-for-Measures2025-06-16Not public
R. 209.1 (a) RoP Order2025-06-16Public
R. 209.1 (a) RoP Order2025-06-16Not public
Receipt2025-06-16Not public
Panel-Appointment2025-06-16Not public
Application-For-Measures-Receipt2025-06-16Not public
Formal-checks_Notification-of-positive-outcome2025-06-16Not public
25-06-16_-EP_965-_HP_v_Rentmeister_ShenzenMoan_Confidentiality_Request2025-06-16Not public
Application-For-Measures-Acknowledgement2025-06-13Not public
Exhibit FBD 14 (confidential)2025-06-13Not public
Exhibit FBD 72025-06-13Not public
Exhibit FBD 10a2025-06-13Not public
Exhibit FBD 15a2025-06-13Not public
Exhibit FBD 20 (confidential)2025-06-13Not public
Exhibit FBD 52025-06-13Not public
Exhibit FBD 162025-06-13Not public
Exhibit FBD 17 (confidential)2025-06-13Not public
Exhibit FBD 152025-06-13Not public
Exhibit FBD 11a2025-06-13Not public
Exhibit FBD 14a (confidential)2025-06-13Not public
Exhibit FBD 62025-06-13Not public
Exhibit FBD 92025-06-13Not public
Exhibit FBD 12025-06-13Not public
Exhibit FBD 122025-06-13Not public
Exhibit FBD 22025-06-13Not public
Exhibit FBD 13 (confidential)2025-06-13Not public
Exhibit FBD 102025-06-13Not public
Exhibit FBD 82025-06-13Not public
Exhibit FBD 112025-06-13Not public
Exhibit FBD 17 (confidential)2025-06-13Not public
25-06-13_-_EP_965_-_HP_vs_Rentmeister_ShenzhenMoan_PI_application_CONFIDENTIAL2025-06-13Not public
Exhibit FBD 212025-06-13Not public
Exhibit FBD 192025-06-13Not public
Exhibit FBD 13a (confidential)2025-06-13Not public
Exhibit FBD 18a2025-06-13Not public
Exhibit FBD 182025-06-13Not public
Exhibit FBD 13a (confidential)2025-06-13Not public
Exhibit FBD 14 (confidential)2025-06-13Not public
Exhibit FBD 16a2025-06-13Not public
Exhibit FBD 32025-06-13Not public
Exhibit FBD 14a (confidential)2025-06-13Not public
Exhibit FBD 20 (confidential)2025-06-13Not public
Exhibit FBD 13 (confidential)2025-06-13Not public
Exhibit FBD 42025-06-13Not public
25-06-13_-_EP_965_-_HP_vs_Rentmeister_ShenzhenMoan_PI_application_CONFIDENTIAL2025-06-13Not public
Coverage: Partial.Reasoning extracted with partial coverage — some sections may be incomplete.
Plain-English summary

HP (Hewlett-Packard Development Company) obtained preliminary injunctions from the Düsseldorf Local Division against both Andreas Rentmeister (German distributor) and Shenzhen Moan Technology (Chinese manufacturer) for infringement of EP 3 835 965 B1 (logic circuitry for printer ink cartridges). A notable procedural principle was established: where Hague Convention service through the Chinese central authority remains unprocessed for months, the court may deem service effective under R. 275.2 RoP, allowing PI proceedings to advance against the unresponsive Chinese defendant.

Accepted arguments
What the court agreed with — by party.

  • Rentmeister infringes claim 13 of EP 3 835 965 B1 by selling non-HP ink cartridges containing the claimed logic circuitry

    ClaimantLegal basis: Art. 62 UPCA; R. 206 RoP

    Note: Düsseldorf granted the PI against Defendant 1 (Rentmeister) after inter partes hearing on 17 October 2025.

  • Deemed service on Shenzhen Moan Technology under R. 275.2 RoP is valid where Hague Convention service via Chinese central authority has been outstanding for several months without progress

    ClaimantLegal basis: R. 275.2 RoP; Art. 15(3) Hague Service Convention

    Note: Court held that Hague Convention service cannot be delayed indefinitely in PI proceedings; where Chinese authorities took no action for months despite follow-up, deemed service was appropriate.

  • Shenzhen Moan also infringes EP 3 835 965 B1; PI should be extended to Defendant 2 following deemed service

    ClaimantLegal basis: Art. 62 UPCA

    Note: December 2025 order extended PI to Defendant 2 after it failed to lodge an objection following deemed service.

Rejected arguments
What the court did not agree with — and why.

No rejected arguments captured.

Key legal principles
Doctrines and rules cited in the reasoning.
Deemed service under R. 275.2 RoP applies in PI proceedings when Hague Convention service through foreign central authority stalls for months without progressThe six-month formal waiting period under Art. 15(2) Hague Convention cannot apply without restriction in urgent PI proceedings (Art. 15(3) Hague Convention recognised)Where a Chinese defendant fails to lodge an objection following deemed service, the court may proceed to determine the PI on the merits

Browse other cases on this principle.

Claim construction notes

The claim at issue (claim 13 of EP 3 835 965 B1) covers logic circuitry for replaceable print apparatus components that generates low-voltage conditions on an I2C serial data bus for durations based on a received time period and without reference to a clock signal of the bus. The infringement findings for both defendants are based on the accused aftermarket ink cartridge chips implementing this architecture, but the merits reasoning is summarised only at the headnote level in the available excerpt.