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CC 584916/2023

Nov 2, 2023·EP3646825: A SYSTEM COMPRISING A PROSTHETIC VALVE AND A DELIVERY CATHETER

Parent infringement case:UPC CFI 15/2023

Case details
Status
Case Closed
Action
Counterclaim for revocation
Category
Counter Claim for Revocation
Parties
Claimants
Reps: Emmanuel Larere (Cabinet Gide Loyrette Nouel AARPI); Raphaëlle Dequiré-Portier (Cabinet Gide Loyrette Nouel AARPI); Jean-Robert Callon de Lamarck (Regimbeau); Jonathan Stafford (Marks & Clerk LLP); Andreas von Falck (Hogan Lovells International LLP)
Respondents
Reps: Boris Kreye (Bird & Bird LLP); Elsa Tzschoppe (Bird & Bird LLP); Bernhard Thum (Thum & Partner); Siddharth Kusumakar (Powell Gilbert (Europe) LLP)
Division
Paris CD
Judges
Technology
Medical Devices · Implants · Pharmaceutical & Medical
Language
English
First decided
Jul 19, 2024
Claims
At issueall
Amendedall
Notes: Patent EP 3 646 825 maintained in amended form per Auxiliary Request II; no individual claim numbers enumerated in excerpt.
Decisions
  • 2024-07-19
    Patent amendedRevocation meritsCounterclaim for revocation

    The Central Division (Paris) maintained Edwards Lifesciences' EP 3 646 825 (prosthetic heart valve) in amended form (Auxiliary Request II) following revocation actions and counterclaims by Meril entities. All invalidity grounds against the amended claims were rejected.

    Legal issues:RevocationPatent amended (auxiliary request)Inventive stepProsthetic heart valveCounterclaim for revocation
Documents
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Coverage: Partial.Reasoning extracted with partial coverage — some sections may be incomplete.
Plain-English summary

Meril entities sought revocation of Edwards Lifesciences' EP 3 646 825, a prosthetic heart valve with a hexagonal-cell frame and delivery catheter system. The Central Division (Paris) upheld the patent in amended form (Auxiliary Request II), finding that all invalidity grounds — including lack of inventive step over Levi as closest prior art and Fontaine's article — were unfounded against the restricted claims requiring an all-hexagonal nickel-cobalt-chromium-molybdenum frame. Costs were allocated 60% to the Meril parties and 40% to Edwards.

Accepted arguments
What the court agreed with — by party.

  • Patent valid as amended by Auxiliary Request II (all-hexagonal-cell frame in nickel-cobalt-chromium-molybdenum alloy with delivery catheter)

    RespondentLegal basis: Art. 138 EPC; Art. 65 UPCA

    Note: The amended claims removed the original broad framing and restricted the frame material and cell geometry sufficiently to overcome all invalidity attacks; Levi was identified as closest prior art but the combination to arrive at the amended claim was not obvious.

  • Problem-solution approach, even if not mandatory, does not change the inventive-step outcome when applied to Auxiliary Request II

    RespondentLegal basis: Art. 56 EPC (by analogy)

    Note: The panel applied the problem-solution approach as a cross-check and reached the same conclusion: no lack of inventive step over Levi as closest prior art.

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

  • Claim 1 as granted lacks inventive step / novelty over prior art including Fontaine article

    ClaimantLegal basis: Art. 56 EPC

    Reason: The panel found that Fontaine's article does not teach that the reduced crimping profile derives specifically from a frame made up entirely of hexagonal cells, so the distinction over prior art was maintained for the amended claim.

  • All invalidity grounds (lack of inventive step, added matter, insufficiency) against Auxiliary Request II

    ClaimantLegal basis: Art. 138(1) EPC

    Reason: The panel found all grounds of invalidity against the amended Auxiliary Request II unfounded; unaddressed arguments deemed absorbed.

Key legal principles
Doctrines and rules cited in the reasoning.
Problem-solution approach is not mandatory under EPC/UPCA but may be applied as a cross-checkAmended claims must be assessed independently for inventive step against closest prior artWhere revocation fails only because patentee filed limitation during proceedings, costs may be apportioned (here 60/40)

Browse other cases on this principle.

Prior art relied on
References cited and the role they played.
  • Levi (prior art document identified as closest prior art)Obviousness combination
  • Fontaine article (prior art relied on for reduced crimping profile argument)Obviousness combination
  • WO 2013/012801 (parent/grandparent application lineage)Background
Claim construction notes

The amended Claim 1 (Auxiliary Request II) requires the frame to be made up entirely of hexagonal cells, each defined by six struts including two opposing side struts parallel to the flow axis, lower and upper angled struts converging toward each other, and the frame material to be a nickel-cobalt-chromium-molybdenum alloy. The panel interpreted 'made up entirely of hexagonal cells' strictly, excluding any non-hexagonal struts except those at inflow/outflow ends for mounting.