Apple hit by record £4.3bn patent loss: why the London market should be watching
A San Diego jury has handed a funder-backed claimant the largest award in US patent history
Apple hit by record £4.3bn patent loss: why the London market should be watching
LEGAL INSIGHTS
By Matthew Sellers
28 Sep 2026

A small San Diego haptics company has won what US legal commentators are calling the largest patent verdict in American history. If it holds, a big share of the money will flow to the investors who paid for the case.

On Friday, US time, a federal jury in the Southern District of California found that Apple had infringed two patents owned by Taction Technology. It awarded more than US$5.7bn in damages, about A$8.1bn at current exchange rates.

The patents cover tactile transducers, the vibration hardware that makes a phone or watch buzz back when you touch it. Taction, which uses the technology in headphones and gaming headsets, told the court that Apple's Taptic Engine used its inventions without a licence. The Taptic Engine is built into iPhones and Apple Watches.

What is a Taptic Engine? The tiny part at the centre of Apple's record patent loss IN ONE SENTENCE A tiny motor that taps instead of buzzes, so your phone or watch can “feel” like it is responding to your touch. OLD BUZZ VS NEW TAP Old way: spinning motor An off-centre weight spins round and round. It shakes the whole device, takes a moment to speed up and slow down, and feels like a dull buzz. Taptic Engine: sliding weight A weight moves back and forth in a straight line, pushed by magnets. It can start and stop almost instantly, so it can make short, crisp taps. INSIDE, SIMPLIFIED N S N 1 2 3 4 5 1 Housing The case that holds everything. 2 Coils Wires that become magnets when electricity flows. 3 Moving weight with magnets Pushed and pulled by the coils, it slides side to side. 4 Flexible supports (flexures) Springy arms that hold the weight and guide it in a flat line. 5 Magnetic fluid (ferrofluid) A liquid that sticks to magnets. It acts like a shock absorber, calming the weight so it doesn't keep wobbling. WHERE YOU FEEL IT Apple Watch Where it first appeared: taps on your wrist for alerts. iPhone Alerts, keyboard “clicks” and feedback when you press or swipe. Why it matters It is built into devices sold in huge numbers, which is part of why the stakes are so high. Simplified illustration, not to scale and not Apple’s actual design. Sources: US Court of Appeals for the Federal Circuit (2025); court filings.

Apple denies it. The company said its Taptic Engine is "fundamentally different" from Taction's technology and that it will appeal. Taction's lawyers at Quinn Emanuel said the verdict vindicated patent rights their client had waited more than five years to have heard.

If at first you don’t succeed…

The Apple patent fight, in plain English What Taction claimed, what Apple said, and how the case got here WHAT TACTION'S PATENT COVERS The patent describes a device that moves your skin with vibration. To match it, a product needs every one of these ingredients: A case with coils inside Wires that turn into magnets when powered Magnets on a moving weight Pushed and pulled by the coils Springy supports (flexures) Guiding the weight in a flat line Magnetic fluid on the weight Ferrofluid, acting as a shock absorber Calming the “bass” range Cutting unwanted ringing between 40 and 200 Hz An evenly damped output The key phrase the case turned on (below) THE PHRASE THE CASE TURNED ON: “HIGHLY DAMPED OUTPUT” Think of a bell versus a thud. Hit a bell and it keeps ringing at one note. A highly damped device behaves more like a thud: it responds evenly and settles fast. Engineers measure the “ringiness” with a number called the Q-factor. The higher the Q, the more it rings. Rings at one note (high Q) Vibration frequency (low to high) Strength Like a bell or a tuning fork Highly damped (low Q) Vibration frequency (low to high) Strength Like a car’s shock absorbers WHO ARGUED WHAT Taction said Apple’s Taptic Engine contains every ingredient, including the magnetic fluid. Its output is highly damped: even and flat, with software helping to control it. So Apple needed a licence and didn’t have one. Apple said The Taptic Engine is “fundamentally different” from Taction’s technology. Taction’s own testing of Apple’s products, shown at trial, backed that up. Apple does not use Taction’s technology, and it will appeal. HOW THE CASE GOT HERE 2021 Taction sues Case filed in federal court in San Diego. 2023 Thrown out The judge read the patent narrowly: the damping had to be mechanical and the Q-factor below 1.5. Apple’s parts scored higher. Taction’s expert was also barred. Aug 2025 Revived The appeals court agreed the output must be highly damped, but said nothing required mechanical damping or a Q below 1.5, and the expert should not have been barred. Sep 2026 Jury verdict Apple infringed. Damages of more than US$5.7bn. The jury did not find it deliberate (“willful”). Next Appeal Post-trial challenges from Apple, then an appeal it has already promised. Simplified for general readers; not legal advice. Sources: US Court of Appeals for the Federal Circuit, Taction v Apple (13 August 2025); court filings; Apple statement.

Taction filed suit in 2021. In 2023, Judge Robinson excluded testimony from Taction's technical expert and granted Apple summary judgment, ending the case before trial. The Federal Circuit then revived it. The trial began on 14 September, and seven jurors took parts of two days to find for Taction.

Anyone estimating Apple's final exposure should be aware of one important finding by the jurors. The jury decided the infringement was not wilful. Under US patent law, a judge can increase damages up to three times the jury's figure, but in practice that power is reserved for wilful or egregious conduct. Without a wilfulness finding, Taction has little prospect of enhanced damages.

Read next: Will US social inflation have a contagion effect worldwide?

Who paid for the case

Taction did not fund the litigation alone. US legal reporting on court disclosures shows the case was financed by Gronostaj Investments LLC and Kenosha Investments LP. In separate litigation, Kenosha has been identified as an indirect subsidiary of Burford Capital, one of the largest litigation funders in the world.

This is the model that liability insurers have been lobbying against. The American Property Casualty Insurance Association has backed a uniform federal rule requiring funders to be disclosed in US courts. Zurich's group chief claims officer has argued that funder involvement increases pressure to settle weak claims. The US National Association of Insurance Commissioners lists third-party funding and nuclear verdicts, generally awards above US$10m, among the main causes of social inflation.

The Taction award is 570 times that nuclear threshold.

Read next: Insurers hail first-in-the-nation ban against litigation funding

The insurance market on the other side

Insurers are not only on the defence side of cases like this. Over the past few years a market has grown up in judgment preservation insurance (JPI). These policies pay a winning claimant or its funder an agreed share of an award if the award is overturned on appeal. Patent verdicts are a core line for JPI because the Federal Circuit has a record of cutting down large awards.

The product has cost its underwriters before. In 2024 a US appeals court reversed a US$1.6bn judgment won by BMC Software against IBM, and insurers that had guaranteed part of that award had to pay. Brokers who placed that business say capacity has since become more expensive and more selective. Whether anyone has written cover on the Taction award is not public.

Why this matters in Australia

It would be easy to dismiss this as a US problem.

Australia is widely recognised as having one of the world's largest litigation funding markets, built largely on class actions. In 2022 the Full Federal Court ruled in LCM Funding v Stanwell that funding schemes are not managed investment schemes, and the federal government then exempted funders from those rules. Local D&O underwriters have already seen what well-funded claimants can do to premiums, retentions and limits. Marsh warned a parliamentary inquiry about this during the securities class action boom.

Patent cases are not shareholder class actions, but the pattern is similar. A well-capitalised backer makes long, expensive litigation affordable against a much wealthier defendant. When damages are calculated per unit sold across millions of devices, the result can far exceed any licence fee the parties might have agreed.

The exposure is direct for Australian manufacturers, med-tech developers and software exporters selling into the US.  Dedicated IP insurance can pay for defending an infringement claim as well as for pursuing infringers.

Brokers should check whether a client's liability programme responds to a patent claim at all, and in many cases it won't. That conversation needs to happen before a demand letter arrives.

Read next: AI litigation, insolvencies among concerns threatening D&Os—Allianz

Big verdicts rarely survive

History is on Apple's side. The previous record was the US$2.54bn (about A$3.6bn) that a Delaware jury awarded Idenix against Gilead in 2016, which was later overturned. The next three largest awards, won by VLSI against Intel, Centocor against Abbott and Caltech against Apple, were all reversed or vacated on appeal.

Taction's award now goes to post-trial motions before Judge Robinson, where Apple will challenge both liability and damages. The appeal Apple has promised will follow. The final figure could be much smaller than the jury's, or nothing at all.

For insurers, what Apple eventually pays may matter less than the fact that a funded claimant, a revived case and a seven-person jury could produce an A$8bn award in the first place.

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