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UPC CFI 137/2025

Feb 21, 2025·EP3567356 · SNIFFING LEAK DETECTOR WITH SWITCHING VALVE AND BUFFER CHAMBER

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Case details
Status
Case Closed (No infringement)
Action
Infringement
Category
Main infringement action
Parties
Claimants
Representatives
Division
Dusseldorf LD
Judges
Technology
  • Instruments
    Measurement
Language
English
First decided
Oct 6, 2026
How this compares
The court's record for this kind of case, counted in first-instance rulings. A figure in brackets is the number of rulings a rate rests on.
Infringement foundMedian days to first decision
All UPC53% (62/117)124
Dusseldorf LDLockedLocked
Judge Berenice ThomLockedLocked
Judge Ingo RinkenLockedLocked
Judge Marije KnijffLockedLocked
Judge Ulrike HolzLockedLocked

At the UPC: Inficon GmbH (2 cases)·Elitech Technology, Inc. (2 cases)

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Related cases
All proceedings on this patent

This dispute contains 1 other proceedings

UPC CFI 512/2025

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More cases: Dusseldorf LD·2025

Decisions
  • 2026-10-06
    InfringementPublic

    Summary: The Düsseldorf LD dismissed Inficon's infringement action against Elitech over EP 3 567 356 (the METRUM gas detector does not realise feature 5, a buffer chamber permitting homogeneous mixing; the claimant's measurements were inconclusive, so no specific contesting under R. 171.2 RoP was needed) and dismissed Elitech's counterclaim for revocation, holding claim 1 novel over CC1 and inventive. Each side bears the costs of the claim it lost; the interim costs request was refused; values EUR 1m and EUR 1.5m, cost ceiling EUR 400,000.

    Show the legal issues (4)
    • No specific contesting required under R. 171.2 RoP where the claimant's measurements are unconvincing from the outset
    • Claim construction of 'buffer chamber' permitting homogeneous mixing
    • Inventive step per Meril v Edwards / Amgen v Sanofi: no pointer or motivation shown
    • No interim award of costs under R. 150.2 RoP where success is split
Documents
Document titleDatePublic
Hearing recording reference document2026-10-13Not public
Publication of decision2026-10-06Not public
Case closed2026-10-06Not public
Decision2026-10-06Not public
Decision2026-10-06Public
Receipt2026-08-26Not public
Cover sheet2026-08-26Not public
Document Claimant2026-08-25Not public
Oral procedure opened2026-08-25Not public
Other Documents2026-08-25Public
Receipt2026-08-21Not public
Cover sheet2026-08-21Not public
Further pleadings2026-08-21Not public
Receipt2026-08-21Not public
Cover sheet2026-08-21Not public
Exhibit Defendant2026-08-21Not public
Submission Defendant2026-08-21Not public
Order2026-08-05Not public
Order2026-08-05Not public
Order2026-06-25Not public
Order2026-06-25Not public
Order2026-03-23Not public
Order2026-03-23Public
Order2026-03-20Not public
Order2026-03-20Public
Receipt2026-03-13Not public
Cover sheet2026-03-13Not public
Document2026-03-13Not public
Receipt2026-03-12Not public
Cover sheet2026-03-12Not public
Document2026-03-12Not public
Communication2026-03-07Not public
Communication2026-03-07Not public
Cover sheet2025-10-13Not public
Statement of rejoinder2025-10-13Not public
Exhibit2025-10-13Not public
Receipt2025-10-13Not public
Acknowledgement-of-lodging2025-08-12Not public
Acknowledgement-of-lodging2025-08-12Not public
Attachment TW 152025-08-12Not public
Attachment TW 182025-08-12Not public
Attachment TW 192025-08-12Not public
Attachment TW 162025-08-12Not public
Attachment TW 142025-08-12Not public
Attachment TW 172025-08-12Not public
Reply Brief Inficon (EP'356) 12 August 20252025-08-12Not public
Attachment TW 142025-08-12Not public
Attachment TW 152025-08-12Not public
Attachment TW 192025-08-12Not public
Attachment TW 162025-08-12Not public
Attachment TW 172025-08-12Not public
Reply Brief Inficon (EP'356) 12 August 20252025-08-12Not public
Attachment TW 182025-08-12Not public
Receipt_physicalExhibit2025-06-13Not public
Exhibit D22025-06-13Not public
Receipt2025-06-12Not public
Formal-checks_Notification-of-positive-outcome2025-06-12Not public
Acknowledgement-of-lodging2025-06-12Not public
Formal-checks_Notification-of-positive-outcome2025-06-12Not public
Exhibit_D_02_Physical_Exhibit_Description2025-06-12Not public
2025-06-12_Noerr_Second_Letter_Physical_Exhibit_Local_Divison2025-06-12Not public
2025-06-12_Noerr_Second_Letter_Physical_Exhibit_Local_Divison2025-06-12Not public
Exhibit_D_02_Physical_Exhibit_Description2025-06-12Not public
Exhibit_D_01_Feature Breakdown of Patent in Suits Main Claim 12025-06-12Not public
2025-06-10_Noerr_SoD_and_CfR2025-06-12Not public
Formal-checks_Request-for-correction2025-06-12Not public
Acknowledgement-of-lodging2025-06-10Not public
Acknowledgement-of-lodging2025-06-10Not public
Exhibit_D_01_Feature Breakdown of Patent in Suits Main Claim 12025-06-10Not public
2025-06-10_Noerr_SoD_and_CfR2025-06-10Not public
2025-06-10_Noerr_SoD_and_CfR2025-06-10Not public
Exhibit_D_01_Feature Breakdown of Patent in Suits Main Claim 12025-06-10Not public
Acknowledgement of access to case2025-06-10Not public
Acknowledgement of access to case2025-05-06Not public
Notification Of Service2025-04-11Not public
Zustellung B1_UPC_CFI_137_20252025-04-11Not public
Notification Of Service2025-03-08Not public
Zustellung B22025-03-07Not public
communicationCheck2025-03-05Not public
communicationCheck2025-03-05Not public
communicationCheck2025-03-05Not public
communicationCheck2025-03-05Not public
communicationCheck2025-03-05Not public
Document from EPO2025-02-27Not public
Document from EPO2025-02-27Not public
Document from EPO2025-02-27Not public
Document from EPO2025-02-26Not public
Document from EPO2025-02-26Not public
Document from EPO2025-02-26Not public
communicationCheck2025-02-26Not public
communicationCheck2025-02-26Not public
Document from EPO2025-02-26Not public
Document from EPO2025-02-26Not public
communicationCheck2025-02-26Not public
Document from EPO2025-02-26Not public
communicationCheck2025-02-26Not public
Document from EPO2025-02-25Not public
Letter-for-Service2025-02-24Not public
Letter-for-Service2025-02-24Not public
Panel-Appointment2025-02-24Not public
EPO-Request-for-case-pending2025-02-24Not public
Receipt2025-02-24Not public
Formal-checks_Notification-of-positive-outcome2025-02-24Not public
Acknowledgement-of-lodging2025-02-18Not public
Attachment_TW_102025-02-18Not public
Attachment_TW_062025-02-18Not public
Attachment_TW_072025-02-18Not public
250218_Complaint_Inficon_EP3562025-02-18Not public
Attachment_TW_122025-02-18Not public
Attachment_TW_012025-02-18Not public
Attachment_TW_042025-02-18Not public
Attachment_TW_082025-02-18Not public
Attachment_TW_022025-02-18Not public
Attachment_TW_132025-02-18Not public
Attachment_TW_112025-02-18Not public
Attachment_TW_052025-02-18Not public
Attachment_TW_032025-02-18Not public
Attachment_TW_092025-02-18Not public
Accepted arguments
What the court agreed with — by party.

  • The attacked METRUM device does not have a buffer chamber in which incoming reference gas is homogeneously mixed with remaining gas (feature 5); the delay in Exhibit TW 11 is not attributable to the housing

    RespondentLegal basis: Claim 1, feature 5; R. 171.2 RoP

  • CC1's blank filter 436 is not a buffer chamber, and the defendants showed no pointer or motivation towards the claimed solution

    ClaimantLegal basis: Art. 54, 56 EPC; Art. 65 UPCA
Rejected arguments
What the court did not agree with — and why.

  • Claim 1 lacks novelty over CC1 and inventive step

    RespondentLegal basis: Art. 54, 56 EPC

  • The defendants' failure to produce their own measurements makes the claimant's measurements undisputed

    ClaimantLegal basis: R. 171.2 RoP