Preliminary injunctions in IP matters: what to do in the first ten days comes down to three moves: preserve every document and product sample that could prove or disprove infringement, instruct counsel able to meet the court's short deadlines, and decide, commercially, whether continuing the disputed activity is worth the exposure it creates.
Who this concerns
This situation reaches two very different readers, and the first ten days look different for each of them.
The rights holder who has just discovered an infringement, or who is watching a competitor launch a product that copies a registered design, patent claim, or trademark, is deciding whether to apply for an interim injunction (interimistiskt vitesförbud) before the underlying infringement action is even filed. For this reader, the first ten days are about assembling probable cause fast enough that the court can act before the commercial damage compounds.
The party that has just been served with an application, or with an order already granted without a hearing, sits in a different position entirely. The clock is set by the court, not by the reader, and missing a deadline for a response can mean the injunction stands unchallenged for the entire duration of the main proceedings that follow it.
Both situations sit within the same forum. Disputes involving patents, trademarks, designs, copyright and trade secrets are heard by the Patent and Market Court (Patent- och marknadsdomstolen) in first instance, with appeal to the Patent and Market Court of Appeal, a forum covered in full in this intellectual property and UPC practice area. Where the patent has instead been validated through the Unified Patent Court system rather than as a purely national right, provisional measures may sit with the UPC's own procedure, which runs on a different timetable and a different evidentiary standard.
What the law says
Under Swedish law as it currently stands, a party can apply for an interim injunction against an ongoing or imminent infringement of a registered IP right without waiting for judgment in the main action. The court weighs two things together: whether the applicant has shown probable cause that the right exists and is being infringed, and whether the balance of harm favours acting now rather than waiting for a full trial. Neither element alone is enough; a strong claim on the merits with no real urgency, or genuine urgency resting on a weak claim, will usually fail on its own.
An interim injunction can be granted after hearing both sides, or, in genuinely urgent cases, without notifying the respondent first. Where it is granted this way, the respondent is entitled to be heard afterwards and can ask the court to lift or vary the order once notified. The applicant is typically required to provide security to cover the loss the respondent may suffer if the injunction later turns out to have been unjustified; the amount is fixed by the court on the facts of the specific case, not read off a scale.
Where the counterparty, its assets, or the infringing goods sit outside Sweden, the first ten days carry an additional layer. Service of the application, or of the order itself, on a foreign party takes longer and follows a different route than domestic service. Evidence held by a foreign manufacturer or distributor may need to be secured through a separate request before it can be relied on, and enforcement of a Swedish order against assets located abroad is not automatic. Where the right in question is a European patent validated through the Unified Patent Court, provisional measures may need to be sought from the UPC directly rather than from a Swedish court, and the two systems do not always align on timing or on the evidence they expect.
How it works in practice
Day one: freeze the position before it moves
Whichever side of the application a reader is on, the first task is the same: stop anything that could later be characterised as destruction, alteration, or concealment of relevant material. For the rights holder this means securing dated copies of the infringing product, marketing material, and any prior communication with the alleged infringer. For the respondent it means preserving, not editing, internal records relating to the design, sourcing, or launch of the disputed product, even where those records are unhelpful.
Day one to three: instruct counsel who can move on the court's timetable
An application for an interim injunction does not wait for the respondent's usual decision-making cycle once it is filed. Counsel needs to be instructed with authority to respond, not merely to review and report back. Internal sign-off structures that work for ordinary commercial disputes are almost always too slow for this window.
Day two to five: build or test the probable cause case
For the applicant, this is the point at which the underlying right is checked for the vulnerabilities the respondent is likely to raise: validity challenges to a patent, distinctiveness challenges to a trademark, or originality challenges to a design. For the respondent, the same exercise runs in reverse, identifying the weakest point in the applicant's claim to the right and the weakest point in the applicant's evidence of infringement.
Day three to seven: map the commercial exposure of compliance
An interim injunction that stops a product launch, a marketing campaign, or a licensing arrangement carries a cost separate from the legal argument itself. This has to be quantified internally, in parallel with the legal work, because it feeds directly into whether to contest the order, negotiate its scope, or comply and preserve the argument for the main action.
Day five to eight: decide on security and counter-security
Where the applicant is required to post security, the respondent's counsel should be reviewing whether the amount reflects the real exposure if the order later proves unjustified. Where the respondent is weighing an undertaking instead of contesting the order outright, the terms of that undertaking need to be drafted at least as carefully as a court order, because they will be read the same way if breached.
Day seven to ten: prepare for the hearing or the response deadline
Whether the next step is a hearing on an order already granted or a substantive response to an application heard on notice, the material assembled in the preceding days needs to be turned into a coherent submission before the deadline set by the court, not on the day it falls due.
What to check in the first ten days:
- Whether the IP right relied on is registered, pending, or unregistered, since the standard of proof for probable cause differs materially between them
- Whether the application was served correctly and on time, particularly where the respondent is a foreign entity or has a registered office outside Sweden
- Whether an order granted without a hearing includes a deadline for the respondent to be heard, and what happens if that deadline is missed
- Whether the security offered or required is proportionate to the actual commercial exposure on both sides of the dispute
- Whether the underlying right has any known vulnerability, such as a pending invalidity action or a prior use predating the registration
- Whether continuing the disputed activity during the ten-day window creates exposure to damages that outweighs the commercial value of continuing it
- Whether the patent in question is a national right or has been validated through the Unified Patent Court, since this changes which court has jurisdiction over provisional measures
Frequently asked questions
How quickly can a preliminary injunction be granted in Sweden?
Timing depends on urgency and on how the application is framed rather than on a fixed statutory period. Where the applicant shows a real risk that delay will make the infringement irreversible or its effects irreparable, the court can act within days, including without notifying the respondent first. Where urgency is less clear, the court is more likely to hear both sides before deciding, which extends the timeline.
What happens if the preliminary injunction is later found to be unjustified?
The applicant who obtained the order is exposed to liability for the loss it caused, which is the reason the court typically requires security before granting it. The respondent's task in that scenario is to quantify the loss precisely and pursue it against the security provided, rather than relying on a general damages claim after the main action concludes.
Can a preliminary injunction be granted without notifying the other party first?
Yes, where the applicant shows that notice would defeat the purpose of the order, for example by giving the respondent time to move or destroy evidence. An order granted this way is not final: the respondent is entitled to be heard afterwards and can apply to have the order lifted or varied once notified.
The numbers
There is no fixed statutory period that applies uniformly to how quickly a Swedish court will decide on an interim injunction application, or to how much security an applicant will be required to post. Both depend on the specific court's caseload, the strength and completeness of the material filed, and the scale of harm the respondent can show it faces if the order is granted or refused. What can be said with confidence is structural rather than numerical: an application correctly framed as urgent is decided faster than one heard on notice; a security figure set too low invites a challenge that itself takes time to resolve; and a response filed after the deadline set by the court is treated as if it had not been filed at all, regardless of its merits.
Where the right at issue runs through the Unified Patent Court rather than through national Swedish procedure, provisional measures follow the UPC's own timetable, which is not aligned with the Patent and Market Court's. A reader dealing with both a national and a European element in the same dispute should not assume the two will move at the same pace, or reach the same conclusion on the same evidence.
Where it usually goes wrong
The most common failure on the applicant's side is filing before the evidence of infringement is dated and attributable, which lets the respondent argue that the harm is speculative rather than imminent. The most common failure on the respondent's side is treating an order granted without a hearing as provisional in every respect, including compliance, when in fact it is binding from the moment it is served regardless of whether it is later overturned.
This analysis does not hold where the underlying right is genuinely contested on validity grounds independently of the infringement dispute. In that scenario, the interim injunction question often becomes secondary to whether the right survives at all, and resources are better directed at the validity challenge first. It also does not hold where the parties are already in a licensing relationship and the real dispute concerns the scope of an existing licence rather than infringement by a stranger to it; that is a different analysis with a different starting point.
Where the respondent is a foreign entity with no assets in Sweden, an interim injunction obtained locally can be legally sound and commercially hollow at the same time, because enforcing it against assets or activity abroad requires a separate step that the ten-day window rarely allows for. Readers in that position should treat the Swedish order as one part of a cross-border strategy, not as the end of one.
What to do next
The first ten days establish the position; they do not resolve it. Reading this material is a reasonable substitute for legal advice up to the point where the actual documents, either the application itself or the evidence of infringement, need to be assessed against the applicable standard. Beyond that point, the work is fact-specific in a way that no general material can replace.
For disputes that sit closer to a licensing or royalty disagreement than to a straightforward infringement claim, the analysis runs differently from day one; see licence disputes and royalty audits for how that first response is structured.
Where the situation has reached the point of assessing whether to contest an order, negotiate its scope, or apply for one, book an assessment with the timeline and the documents in hand.