When a rival launches an obvious workaround: what it costs to be wrong
A rival's workaround rarely calls for an injunction on day one. It calls for a claim-by-claim comparison, done in writing, before any letter leaves the building. Guessing wrong is expensive either way: a cease-and-desist that collapses under scrutiny, or weeks lost while the workaround takes market share and the damages clock keeps running.
What starts the moment you notice the workaround
Two things start moving at once. First, the commercial clock: every week the workaround stays unchallenged, it earns customers and reference accounts that are hard to win back. Second, the legal clock: limitation periods on damages claims run from the date the infringement became known, not from the date proceedings begin. Treating the two clocks as one is the most common reason clients act too fast, or too slow.
Basis: which forum has jurisdiction
Where the dispute lands depends on how the patent was obtained. A European patent registered as a Unitary Patent falls under Regulation (EU) No 1257/2012, with translation arrangements set by Council Regulation (EU) No 1260/2012; both took effect on 2023-06-01. Infringement and revocation for that patent are heard by the forum created under the Agreement on a Unified Patent Court, also in force from 2023-06-01. A patent validated only nationally, outside the unitary system, is litigated before the national court instead.
If the rival's product is manufactured outside the EU and crosses an external border, a separate route exists: an application under Regulation (EU) No 608/2013 lets customs authorities detain suspect goods without waiting for a court judgment. It has run on its own timetable since 2014-01-01, and it does not replace an infringement action.
What actually changes once the workaround is on the market
Once a workaround is visible in the market, three things change at once: which forum has jurisdiction, how fast evidence must be gathered, and how the cost of being wrong is distributed. A losing interim injunction application is public, gets cited by the rival, and is expensive to reverse. A missed customs window simply lets further shipments through unchallenged.
| Signal observed | What is already running | Who moves first |
|---|---|---|
| Workaround product sold within the EU | Limitation period on the damages claim | Patent holder, through counsel |
| Workaround product crossing an EU external border | Window to lodge a customs application under Regulation (EU) No 608/2013 | Customs authority, on the holder's application |
| Patent held as a Unitary Patent | Forum choice under the Agreement on a Unified Patent Court | Patent holder, before filing |
What to do, in order
- Freeze the evidence. Instruct whoever monitors the market to record dates, screenshots and product samples of the workaround, before any contact with the rival.
- Commission a claim-by-claim comparison. Patent counsel maps every claim element against the workaround, in writing, before any letter is drafted.
- Confirm which forum applies. Counsel checks whether the patent is a Unitary Patent under Regulation (EU) No 1257/2012 or validated nationally, since the answer decides the forum.
- Decide on the customs route. If the goods originate outside the EU, file the Regulation (EU) No 608/2013 application in parallel with, not instead of, an infringement claim.
- Choose the first move. A cease-and-desist letter, an interim injunction application, or a monitoring period each carries a different cost if the comparison in step two turns out wrong.
- Set a review date. Whoever owns the decision revisits it against the market clock, not against an arbitrary internal deadline.
Who decides, and on what evidence
For a Unitary Patent, the forum created under the Agreement on a Unified Patent Court decides both infringement and any counterclaim for revocation, based on claim construction and the technical evidence each side submits. For a patent validated only nationally, the national court decides on the same kind of evidence, applying its own procedural calendar. A customs authority acting under Regulation (EU) No 608/2013 decides only whether to detain the goods; it does not rule on infringement and refers that question onward.
Two branches worth separating
If the workaround also reuses visual or design material supplied on an earlier project, ownership of that material can become a separate dispute, running on its own timeline: When a designer reuses a template from an earlier client sets out how that question is usually resolved.
If the technology behind the workaround is itself licensed under a contract that never addressed later changes, the same gap can resurface here: When the contract has no upgrade path and its consequences walks through what that costs.
What this page does not decide
This page does not decide whether the workaround actually infringes; that is a technical, claim-by-claim question for patent counsel, not a general legal read. It does not set a fee or a timetable for that comparison — the number of claims at issue, the prior art already on file, and whether a revocation counterclaim is likely all move the estimate. It also does not replace the forum's own rules of evidence and procedure.
Sources and limits
If the dispute also touches a counterparty relationship — a distributor now selling the rival's workaround, say — that exposure is assessed separately: Counterparty report before onboarding a distributor and the deadline sets out how.
Sources: Regulation (EU) No 608/2013, in force from 2014-01-01; Regulation (EU) No 1257/2012 and Council Regulation (EU) No 1260/2012, both in force from 2023-06-01; Agreement on a Unified Patent Court, in force from 2023-06-01. Collection and cross-checking follow the method described in Methodology: collection, cross-checking and dating step by step.
Related situations
A workaround dispute often sits beside a different but connected failure: When a validation deadline was missed in practice looks at what happens when the underlying patent right was never secured properly in the first place.
Frequently asked questions
What is the first step when a rival launches an obvious workaround?
Freeze the evidence, then commission a claim-by-claim comparison against the granted patent, in writing, before any contact with the rival.
Which deadline is already running?
At minimum, the limitation period on any damages claim, which runs from when the infringement became known. If the goods cross an EU border, the window to lodge a customs application under Regulation (EU) No 608/2013 runs in parallel.
Who decides, and on what evidence?
The Unified Patent Court, for a Unitary Patent, or the competent national court otherwise — both on claim construction and the technical evidence submitted; a customs authority only decides on detention, not on infringement.