Article 79 Italian Industrial Property Code, Patent Limitation in Italy: Strategy, Timing and Effects

Introduction, why patent limitation Italy matters in 2026

Patent limitation Italy has moved from a rarely-used procedural footnote to a central tactical lever in cross-border enforcement, particularly as the Unified Patent Court settles into routine practice and the European Patent Office central limitation procedure interacts more frequently with national proceedings. The mechanism sits in Article 79 of the Italian Industrial Property Code, the statute that allows a patent owner to voluntarily narrow the scope of granted claims. For patent owners facing a validity attack, a well-timed limitation can preserve an enforceable core of the patent while shedding the vulnerable periphery. For defendants, the same limitation can reshape the entire dispute, redefining infringement analysis and damages exposure.

This guide explains the legal framework, the procedure and timing, the coordination questions with EPO central limitation and the UPC, the effects on remedies, and the drafting discipline required to make a limitation stick. Throughout, the focus is practical: what to file, when to file it, and what happens to your case once you do.

Legal framework, Article 79 explained

The Italian Industrial Property Code (Codice della Proprietà Industriale) was enacted by Legislative Decree No. 30 of 10 February 2005 (Decreto Legislativo 10 febbraio 2005, n. 30). Article 79, as amended over the years, governs the reformulation and limitation of a granted patent: it permits the patent holder, both in proceedings before the Italian Patent and Trademark Office and in the course of nullity proceedings, to submit a request to reformulate the claims in a narrower form, provided the reformulation does not extend the protection conferred by the patent as granted. The consolidated statutory text is available through Normattiva, the official Italian legal database, and the original decree was published in the Gazzetta Ufficiale.

The essential legal effect of a limitation under Article 79 is that the amended claims replace the original claims. In principle, the limited patent is treated as though it had had the narrower scope, subject to the constraint that no new matter is introduced and that protection is only ever reduced, never broadened. Once accepted and recorded, the limitation is entered in the national patent register maintained by the Italian Patent and Trademark Office (UIBM, Ufficio Italiano Brevetti e Marchi) and published, giving third parties notice of the revised scope. This registry effect is what makes patent limitation Italy a substantive, not merely cosmetic, act: the limited claims become the reference point for subsequent infringement and validity assessments.

Where Article 79 sits in the Italian IP code

Article 79 forms part of the Code’s provisions on patents and the administration of granted rights. It operates alongside the nullity provisions, which allow third parties or courts to invalidate patents that fail the requirements of novelty, inventive step, sufficiency or added matter. Limitation is the patent owner’s counterweight to nullity: rather than defending an over-broad claim to the last, the holder can pre-emptively or reactively narrow the claim to a form that may survive scrutiny. Understanding Article 79 Italian Industrial Property Code as part of this validity–limitation dynamic is fundamental to using it well.

Procedure trigger points under Italian law

There are two principal contexts in which a limitation is triggered. The first is administrative: the patent owner voluntarily files a limitation request with the UIBM outside any dispute, typically to strengthen a patent before asserting it or to respond to prior art discovered during due diligence. The second is litigation-driven: a limitation is proposed while a nullity or infringement action is pending, either administratively before the UIBM or, as provided by the Code, within the court proceedings themselves, where the proprietor may submit a reformulated claim set for the court’s assessment. The trigger point chosen has significant consequences for timing, publication and how the court treats the limited claims.

Because the procedural route and its effect on the litigation calendar differ, counsel should identify the trigger point at the outset of any limitation strategy.

When and how to file a national limitation under Article 79

A national limitation is available to the registered patent proprietor. Where the patent is co-owned, all proprietors generally must join or authorise the request, and where security interests or licences are recorded, prudent counsel checks whether contractual consents are required before narrowing the granted right. The request is directed to the UIBM, accompanied by the reformulated claims, a statement explaining the basis for the amendment in the application as filed, and payment of the applicable administrative fee. The office examines the request to confirm that the amended claims do not extend protection and do not introduce added subject-matter. Once accepted, the limitation is recorded in the national register and published.

Practical filing checklist (stepwise)

• Confirm standing. Verify the current registered proprietor, resolve any co-ownership consents, and check recorded licences or security interests.
• Draft the limited claims. Prepare a narrower claim set with a clear textual basis in the granted patent and the application as filed, avoiding any new matter.
• Prepare the supporting statement. Explain how each amendment is supported and why it narrows rather than broadens protection.
• Assemble filing documents. Compile the request, the amended claims, the basis statement and any powers of attorney.
• Pay the applicable fee. Confirm the current fee schedule with the UIBM before filing.
• File with the UIBM. Submit through the appropriate national channel and retain proof of filing date.
• Monitor examination and publication. Track acceptance, entry in the register and publication, which fix the effective date.
• Notify the court and parties. Where litigation is pending, promptly inform the court and opposing parties of the limitation.

Timing with respect to pending infringement or nullity actions

Timing is among the most consequential variables in any patent limitation Italy strategy. Where a nullity attack is anticipated or already filed, filing a limitation early can neutralise the strongest prior art before the defendant builds its case around it, forcing the challenger to redirect its invalidity arguments against a narrower and better-defended claim. Filing too late, after the defendant has invested in and disclosed its full invalidity position, risks appearing tactical and may draw closer judicial scrutiny of whether the amendment is a genuine narrowing or an attempt to escape a losing position.

In pending infringement proceedings, the limitation must be coordinated with the litigation calendar: the asserted claims should be amended in a way that the court can readily adjudicate, and the infringement theory must be re-mapped onto the limited claims. A limitation filed during proceedings is possible, but counsel should anticipate a request by the opposing party to address the new claim scope and, potentially, an application to adjust the procedural timetable. The interaction between a limitation and a concurrent nullity action requires careful sequencing so that the court is not asked to rule on claims that are about to change.

National vs EPO central limitation Italy, comparison and when to choose what

For patents originating from a European Patent Office grant, the proprietor has a second route: central limitation under Articles 105a–105c of the European Patent Convention. EPO central limitation amends the granted European patent centrally, and the amendment takes effect for all designated states in which the patent has effect. This is powerful where the same claim vulnerability affects multiple jurisdictions, because a single filing achieves a coordinated narrowing across the European bundle rather than requiring separate national limitations in each country. The trade-off is that central limitation is a European Patent Office procedure with its own timeline and cannot be as tightly synchronised with a specific Italian litigation calendar as a national filing.

Note that central limitation before the EPO is not available while an opposition is pending.

The strategic choice between national vs EPO central limitation Italy turns on territorial scope, speed relative to a specific dispute, and the presence of parallel proceedings elsewhere. A national limitation under Article 79 can be aligned more closely with an Italian court’s timetable and affects only the Italian patent; a central limitation reaches the whole European bundle but is administered centrally and on the EPO’s schedule.

Strategic scenarios (when to pick national, when to pick EPO central, when to do both)

Choose the national route when the dispute is confined to Italy, the litigation timetable is pressing, and the vulnerability affects only the Italian claims. Choose EPO central limitation when the same prior art or added-matter problem undermines the patent across several European jurisdictions and a coordinated, bundle-wide narrowing is the priority. Consider doing both, or sequencing them, where an Italian action demands an immediate national fix but a broader European exposure also needs central resolution. In that combined scenario, counsel typically files the national limitation to secure the Italian position quickly, then pursues central limitation to align the wider bundle, taking care that the two claim sets are consistent.

Where UPC proceedings are live or foreseeable, the coordination of national limitation with the European patent’s status becomes a first-order strategic question rather than an afterthought.

Effects on remedies, injunctive scope, damages and related considerations

The reason patent limitation Italy is a litigation tool and not merely an administrative tidy-up is its effect on remedies. Because the amended claims replace the granted claims, a limitation redefines the scope of protection against which both infringement and validity are measured. This has immediate consequences for the reach of any injunction and for the calculation of damages, and it raises questions of estoppel and the effect of any final judgment that must be managed carefully.

Damages, practical examples and scenarios

The central damages question is whether narrowing the claims relieves the patentee, or the infringer, of consequences for pre-limitation conduct. Because the patent is generally assessed by reference to the narrower scope once limited, the outcome cuts both ways. Consider a patentee who asserts a broad claim, faces a strong invalidity attack, and then limits to a narrower embodiment. If the defendant’s product falls within the narrowed claim, the patentee may still recover for past infringing acts, because the acts fell within the claim in its limited form.

If, however, the defendant’s product fell only within the broad, now-abandoned scope and not within the limited claim, the limitation effectively concedes non-infringement for the surrendered subject-matter, and the damages claim for those acts is likely to fail.

A mini scenario illustrates the point. Suppose a patentee sues on a claim covering a device with “a fastening element,” and the accused product uses a magnetic fastener. Prior art threatens the broad claim. The patentee limits the claim to “a mechanical fastening element. ” If the accused magnetic fastener no longer falls within the limited claim, the infringement case, and the associated damages, evaporate for that product, even though the same product would have fallen within the original broad claim. Conversely, if the accused product uses a screw fastener that falls squarely within “a mechanical fastening element,” the limitation strengthens the patentee’s position and past damages remain in play against a claim that is now harder to invalidate.

The lesson is that the effect of patent limitation on damages in Italy depends on the interaction between the narrowed scope and the specific accused embodiment. Counsel should model this before filing, not after.

Injunctions, scope narrowing, interim measures and enforcement

An injunction can only extend as far as the enforceable claim. When a limitation narrows the claim, it narrows the potential reach of any prohibitory order: activities that fell within the broad claim but outside the limited claim can no longer be enjoined. For interim and precautionary measures, this matters because a court assessing the likelihood of success and the scope of an injunction will do so against the limited claims once the limitation is effective. A patentee seeking urgent relief should therefore ensure that the limited claim still clearly reads on the infringing activity; a limitation that inadvertently excludes the target defeats the purpose of the enforcement action.

For the defendant, prompting or highlighting a limitation that narrows the claim away from its product is a route to defeating or restricting an injunction.

Drafting examples and procedural pitfalls (do and don’t)

The durability of a limitation rests on the quality of the drafting. The overriding constraints are that the amendment must narrow protection and must not introduce matter absent from the patent as originally filed. Within those limits, counsel can pursue a conservative narrowing that preserves as much scope as possible, or an aggressive narrowing that trades scope for validity certainty.

Sample limited claim text (illustrative approaches)

• Conservative narrowing (adding a supported feature). Original: “A device comprising a fastening element.” Limited: “A device comprising a mechanical fastening element.” This adds a narrower, clearly supported qualifier while retaining substantial breadth.
• Moderate narrowing (incorporating a dependent claim). Original independent claim plus dependent claim reciting “wherein the fastening element is a threaded screw.” Limited: the independent claim rewritten to incorporate the threaded-screw limitation, collapsing the dependent feature into the main claim to overcome prior art.
• Aggressive narrowing (specific embodiment). Limited to the precise embodiment described in the specification, for example “a threaded steel screw engaging a corresponding threaded aperture,” trading breadth for a claim that is difficult to invalidate.

Any sample language must be validated against the specific patent and its original disclosure before use; these examples illustrate structure, not off-the-shelf wording.

Don’ts: language that courts reject

Avoid amendments that introduce features not derivable from the application as filed, added matter is a classic ground for attacking a limitation. Avoid open-ended disclaimers that carve out unspecified subject-matter, and avoid language that is arguably broadening in any respect, since limitation may only reduce scope. Do not draft the limited claim so tightly that it no longer reads on the accused product where an enforcement objective remains. And do not neglect internal consistency between the limited claims and the description, which can create sufficiency or clarity vulnerabilities that a defendant will exploit.

How third parties and defendants can respond, challenges and tactical responses

A limitation does not end the dispute; it reframes it. A defendant confronted with an amended patent has several avenues. It can attack the limitation itself, arguing that the amendment introduced added subject-matter, broadened protection, or otherwise failed the requirements for a valid limitation. It can refocus or refile its nullity case against the narrowed claims, contending that even in limited form the patent lacks novelty or inventive step. It can seek to adjust the procedural timetable or request a stay to address the changed claim scope, particularly where the limitation arrives late in the proceedings.

And where the accused product falls outside the limited claim, the defendant can press for a declaration of non-infringement and resist any damages claim tied to the surrendered scope. Timing is important: a defendant should raise objections to the limitation and any consequential procedural requests promptly, so that the court addresses the amended claims on a proper footing rather than allowing the patentee’s narrowed position to go unchallenged.

Practical timeline, coordinating national, EPO and UPC steps

• Day zero. Identify the validity vulnerability and decide whether narrowing is warranted; confirm standing and consents.
• Weeks 1–4. Draft the limited claim set and basis statement; model the damages and injunction consequences of the narrowed scope against every accused product.
• Weeks 2–6. Decide route, national under Article 79, EPO central limitation, or both, based on territorial exposure and litigation urgency.
• Filing window. File the national limitation with the UIBM where an Italian case is pressing; initiate EPO central limitation where the vulnerability spans the European bundle (and no opposition is pending).
• Promptly after filing. Notify the Italian court and opposing parties; request any consequential procedural adjustments.
• On acceptance and publication. Confirm entry in the register and the effective date; re-map the infringement case onto the limited claims.
• Following months. Ensure consistency between national and central claim sets, monitor any parallel UPC proceedings, and raise the limited scope at the next substantive hearing.

Conclusion, recommendation checklist for counsel on patent limitation Italy

Patent limitation Italy is a precision instrument: used early and drafted carefully, it can preserve an enforceable patent and shift the balance of a dispute; used late or drafted loosely, it can concede infringement, invite added-matter attacks and narrow away the very relief the patentee seeks. The decision matrix is straightforward. Limit under Article 79 where an Italian dispute is urgent and the vulnerability is Italy-specific. Use EPO central limitation where the same weakness spans the European bundle and coordinated narrowing is the priority. Do both, in sequence, where an immediate Italian fix and a wider European resolution are each needed. Do not limit at all where the granted claims are robust or where narrowing would surrender the accused embodiment.

In every case, model the effect of patent limitation on damages and injunctive scope before filing, coordinate with any EPO and UPC steps, and hold the drafting to the twin disciplines of narrowing only and adding nothing new.

Sources

1. Normattiva, Italian legal database (Codice della Proprietà Industriale, D.Lgs. 10 febbraio 2005, n. 30)
2. Gazzetta Ufficiale della Repubblica Italiana
3. Ufficio Italiano Brevetti e Marchi (UIBM), Ministero delle Imprese e del Made in Italy
4. European Patent Office, European Patent Convention legal texts
5. Unified Patent Court, official site
6. Max Planck Institute for Innovation and Competition