UPC orders 17-country recall of Angelalign’s infringing torque-ridge aligners

The story

Europe’s Unified Patent Court has ordered Angelalign companies to stop offering clear-aligner systems with a torque-control feature that infringes an Align Technology patent. The Paris Local Division’s October 16 merits decision upheld EP 2 237 738 B1, rejected Angelalign’s revocation counterclaim and imposed an injunction, recall, market removal and destruction across 17 participating states. The judgment can be appealed, and the amount of damages will be determined in separate proceedings.

The patent concerns geometry inside a transparent orthodontic tray. Clear aligners move teeth through a sequence of close-fitting polymer shells, but pushing on a tooth crown can create unwanted tipping around the root’s centre of resistance. Align’s specification describes a continuous, horizontally oriented ridge that protrudes into the tooth-receiving cavity on the cheek-facing side. By controlling where and how the tray contacts the crown, the ridge is intended to deliver a more useful force and counteracting moment for root torque and other planned movement.

That distinction between a ridge and a point-like dimple was central to the commercial dispute. Align markets its implementation as Power Ridge. Angelalign sold Select and Pro aligners using Torque Ridges and an AngelAttach system. According to an independent analysis of the judgment by Dhenne Avocats, the court found literal infringement of claims 1, 4, 5, 7 and 8 rather than relying on a broader equivalents theory. It also held that a planned treatment does not require every aligner in the series to have been designed at the outset.

The court rejected Angelalign’s attacks on validity, including insufficiency, added matter and inventive step. The patent claims priority from January 2008, was filed in December 2008 and was granted in July 2023 with unitary effect. Its technical disclosure does not claim clear aligners as a category. It narrows the invention to systems and fabrication methods involving defined ridge geometry and planned successive tooth arrangements—a reminder that enforceable product control often turns on a specific mechanical interface rather than an entire platform.

The remedy is broad geographically but carefully bounded clinically. Align says Angelalign must stop the infringing offering in Austria, Belgium, Bulgaria, Denmark, Estonia, Finland, France, Germany, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Portugal, Slovenia and Sweden. The order does not require the withdrawal of aligners already delivered to patients whose treatment is underway. It instead reaches patients whose treatment has not begun or has been interrupted, an attempt to enforce the patent without forcing an immediate change for every person already using a prescribed sequence.

The court did not grant everything Align requested. It rejected claims concerning the United Kingdom because applicable foreign law and infringing acts there were not adequately pleaded and proved. A Dutch holding company was cleared because operational involvement was not established. The panel also refused publication of the decision and declined the defendants’ request that Align post security. Damages run only from the patent’s grant and will be quantified later; Angelalign must provide information under a restricted confidentiality arrangement.

Both companies are framing the practical effect differently. Align calls the outcome a significant validation of Power Ridge and says Angelalign must recall and destroy infringing products. Angelalign says it had already discontinued Torque Ridges in Europe and introduced Pressure Points in September, so European treatment availability continues. It disagrees with the ruling, is reviewing its options and says it will comply. Align, in turn, says it has not publicly concluded whether the replacement feature implicates its intellectual-property rights.

That unresolved design-around question matters beyond these two brands. The patent explains that ridges distribute force along a length of tooth surface, while a dimple applies force more like a point. A replacement can therefore differ in visible shape yet still require careful claim analysis, performance testing and documentation. Engineers cannot treat a patent workaround as a cosmetic redesign; the force path, orientation, fabrication method and treatment-planning logic may all affect both clinical function and infringement risk.

INNOVOX analysis: the ruling demonstrates the UPC’s ability to turn a single merits decision into coordinated market relief across much of Europe. That raises the value of a unitary patent, but it also increases the cost of being wrong about clearance. A device maker can no longer assume that country-by-country litigation will provide time to adjust inventory and software. Patent review, design-around engineering and continuity planning for patients must begin before a feature enters a multinational product pipeline.

What to watch next is the appeal and the evidence behind the replacement technology. A higher court could revisit claim interpretation, validity or the tailored remedy. The damages phase will reveal the economic scale of the infringement after the 2023 grant. Clinically, the key question is whether Pressure Points can deliver comparable torque control through a legally distinct geometry. For the wider medtech sector, the case will test whether the UPC’s combination of continent-scale enforcement and patient-sensitive exceptions becomes a repeatable model.

INNOVOX analysis

The result shows how the UPC can convert one technical claim construction into a multi-country product intervention. Just as important, the court did not treat medical continuity as all-or-nothing: it preserved ongoing treatment while stopping new or interrupted courses involving the infringing feature. For medtech companies, design-around work and litigation planning now have to operate on the same European timetable.

What to watch

Watch for an appeal, the separate damages proceeding, evidence about the effectiveness and legal distance of Angelalign’s replacement Pressure Points feature, and whether the ruling changes how clear-aligner manufacturers document ridge, dimple and force-delivery geometries during product development.