UPC CFI 515/2025
Jun 13, 2025·EP3835965 · LOGIC CIRCUITRY
- Case details
- StatusCase ClosedActionProvisional measuresCategoryProvisional measures
- Parties
- Claimants
- Hewlett-Packard Development Company, L.P.Operating co.
Representatives- Richard Wunderlich-Freshfields
- Wolfgang Lippichsupporting-Widenmayerstraße 6 Munich
- Alexander von Poswiksupporting-Widenmayerstraße 6 Munich
- Martin Janovecsupporting-Widenmayerstraße 6 Munich
Respondents- Andreas Rentmeister e.K.Operating co.
- Shenzhen Moan Technology Co., Ltd.Operating co.
Representatives- Jochen Ewald Bühling-Krieger Mes & Graf von der Groeben
- Division
- Dusseldorf LD
- Technology
- Electrical engineeringComputer technology
- Mechanical engineeringTextile and paper machines
- Language
- English
- First decided
- Oct 17, 2025
- Last decision
- Feb 2, 2026
| Preliminary injunction granted | Median days to first decision | |
|---|---|---|
| All UPC | 54% (38/70) | 124 |
| Dusseldorf LD | Locked | Locked |
| Judge Ronny Thomas | Locked | Locked |
| Judge Rute Lopes | Locked | Locked |
| Judge Jule Schumacher | Locked | Locked |
At the UPC: HP Group (22 cases)·Andreas Rentmeister e.K. (3 cases)
- 2026-02-02
Summary: 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.
Show the legal issues (2)
- Service order (R. 275.2 RoP)
- Follow-up to preliminary injunction
- 2025-12-19Application for provisional measuresPublic
Summary: 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.
Show the legal issues (2)
- Preliminary injunction by default
- Logic circuitry / replaceable print components
- 2025-11-11Application for provisional measuresPublic
Summary: 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.
Show the legal issues (3)
- R. 275.2 RoP deemed good service
- Hague Convention service failure - Chinese Central Authority inaction
- Alternative service in provisional measures proceedings
- 2025-10-17Application for provisional measuresPublic
Summary: 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.
Show the legal issues (3)
- Preliminary injunction for printer cartridge logic circuitry
- I2C serial data bus interface patent
- Opt-out withdrawal and UPC jurisdiction
| Document title | Date | Public |
|---|---|---|
| Case closed | 2026-02-11 | Not public |
| Order | 2026-02-02 | Not public |
| Order | 2026-02-02 | Public |
| Receipt | 2026-01-13 | Not public |
| Cover sheet | 2026-01-13 | Not public |
| Exhibit document Claimant | 2026-01-13 | Not public |
| Application document Claimant | 2026-01-13 | Not public |
| Decision | 2025-12-19 | Not public |
| Final Order | 2025-12-19 | Public |
| Cover sheet | 2025-12-12 | Not public |
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.
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 RoPNote: 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 ConventionNote: 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 UPCANote: December 2025 order extended PI to Defendant 2 after it failed to lodge an objection following deemed service.
No rejected arguments captured.
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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.