Apple v. LG Electronics (23-1475): Federal Circuit Affirms PTAB Invalidity of Camera Sensing Patent
Apple appealed a PTAB invalidity ruling on US7933431B2, a patent covering camera-based sensing in handheld and mobile devices, against LG Electronics. After 755 days before the Federal Circuit, the court affirmed that 28 of 31 claims are unpatentable — leaving only claims 11 and 13 intact.
Federal Circuit locks in PTAB’s mass cancellation of Apple’s camera sensing claims
Apple, Inc. filed Federal Circuit appeal No. 23-1475 on 8 February 2023, challenging a Patent Trial and Appeal Board decision that had found the overwhelming majority of claims in US7933431B2 unpatentable. The patent — directed to camera-based sensing technology applicable to handheld, mobile, gaming, and other consumer devices — sits squarely in the competitive arena between Apple and LG Electronics, two of the world’s largest consumer electronics players. LG was represented by DLA Piper; Apple by Orrick, Herrington & Sutcliffe and Erise IP.
On 4 March 2025, after 755 days of appellate proceedings, the Federal Circuit issued its affirmance. The court upheld the PTAB’s finding that claims 1–10, 12, and 14–31 are unpatentable, while confirming that claims 11 and 13 were not shown to be unpatentable. That narrow survival of two claims offers Apple a residual patent position, but the commercial scope of US7933431B2 is now severely curtailed. LG Electronics prevails on the substance of the challenge.
A 755-day appellate duration is consistent with cases involving substantive patentability arguments requiring detailed claim-by-claim analysis. The Federal Circuit’s terse disposal of remaining arguments as ‘unpersuasive’ suggests Apple was unable to identify a discrete legal error in the Board’s fact-finding or claim construction. What remains unknown from the public record is whether any parallel district court proceedings or licensing disputes involving this patent remain live, and whether Apple will seek en banc rehearing or certiorari.
Filing to Appeal Dismissed in 755 days
755 days at the Federal Circuit — above the median for single-patent appeal resolutions
Federal Circuit affirms: what the ruling means for Apple and LG Electronics
Affirmance means the PTAB’s invalidity finding is now binding
When the Federal Circuit affirms a PTAB decision, it confirms that the Board committed no reversible error — whether on claim construction, application of prior art, or procedural grounds. The appellate court reviewed the record and found Apple’s arguments unpersuasive on all counts, giving the PTAB ruling full legal effect. Claims 1–10, 12, and 14–31 of US7933431B2 are now unpatentable as a matter of final federal adjudication.
No reversible error foundApple retains only claims 11 and 13 — enforcement scope is drastically narrowed
Apple entered this appeal holding 31 claims across US7933431B2. The affirmance leaves only claims 11 and 13 intact — the two claims the PTAB found LG failed to prove unpatentable. While Apple technically retains an enforceable patent, the commercial utility of those two surviving claims depends entirely on their independent scope. For licensing, enforcement, or portfolio valuation purposes, a patent stripped of 28 of 31 claims is typically a materially weakened asset.
2 of 31 claims surviveLG secures freedom to operate across nearly all camera sensing claims
LG Electronics successfully defended the PTAB’s invalidity determination at the highest available appellate level short of the Supreme Court. With 28 claims cancelled, LG and any third party operating in the camera-based sensing space face significantly reduced infringement exposure from this patent. LG’s appellate options are exhausted for the affirmed claims; Apple’s remaining avenues — en banc rehearing or certiorari — face a high bar and do not automatically stay the current judgment.
28 claims cancelled — FTO improvedAffirmance raises the bar for camera sensing IP in consumer electronics
This ruling strengthens the prior art landscape against broad camera-based sensing claims in mobile and handheld devices. Competitors and component suppliers operating in gesture recognition, depth sensing, or image-triggered interaction — technologies reliant on the claim space covered by the ‘431 patent — can plan around the now-cancelled claims with greater certainty. The survival of claims 11 and 13 may still attract scrutiny from product teams, and a targeted FTO review of those two claims remains advisable for companies in adjacent product categories.
Prior art landscape clarifiedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Apple, Inc. | Company | Consumer electronics and software company — holder of US7933431B2 covering camera-based sensingSearch in Eureka ↗ |
| Defendant | LG Electronics, Inc. | Company | Global consumer electronics manufacturer and Apple patent challenger at the PTABSearch in Eureka ↗ |
| Plaintiff counsel | Abigail Colella | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Adam Prescot Seitz | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Clifford T. Brazen | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Elizabeth Moulton | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Jonas Wang | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Melanie L. Bostwick | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Paul R. Hart Partner | Attorney | Counsel for Apple, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Erise, IP PA | Law Firm | Representing Apple, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Orrick, Herrington & Sutcliffe LLP | Law Firm | Representing Apple, Inc.Search in Eureka ↗ |
| Defendant counsel | Matthew D. Satchwell | Attorney | Counsel for LG Electronics, Inc.Search in Eureka ↗ |
| Defendant counsel | Stanley Joseph Panikowski , III | Attorney | Counsel for LG Electronics, Inc.Search in Eureka ↗ |
| Defendant law firm | DLA Piper LLP (US) | Law Firm | Representing LG Electronics, Inc.Search in Eureka ↗ |
| Defendant law firm | DLA Piper US LLP | Law Firm | Representing LG Electronics, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The Federal Circuit’s verdict is unambiguous in scope: it affirms the PTAB’s unpatentability holding for claims 1–10, 12, and 14–31, while preserving the Board’s finding that claims 11 and 13 were not shown to be unpatentable. The court applied the substantial evidence standard to the Board’s factual determinations on anticipation and obviousness, and de novo review to any questions of claim construction. The phrase ‘remaining arguments… unpersuasive’ is a conventional Federal Circuit formulation that forecloses further argument on those grounds at this level — it does not imply a close question.
US7933431B2 — Camera-Based Sensing in Mobile and Handheld Devices
US7933431B2, filed under application number US12/834281, protects methods and systems for camera-based sensing in handheld, mobile, gaming, and other consumer device contexts. The patent claims cover the use of camera hardware and associated processing to detect or interpret physical inputs — a technical domain that underlies gesture control, augmented reality, depth sensing, and image-triggered device interaction. Its claim set spans both method and system claims, with claims 1–10, 12, and 14–31 now cancelled following Federal Circuit affirmance of the PTAB’s invalidity finding.
Camera-based sensing is a foundational capability in modern smartphones, tablets, gaming controllers, and emerging AR/VR platforms. A patent covering this space — particularly one asserted between Apple and LG, two top-five global handset manufacturers — carries significant competitive and licensing implications. The now-cancelled claims likely overlapped with widely deployed camera interaction features. The surviving claims 11 and 13 represent a residual but potentially monetisable position; their specific technical footprint will determine whether Apple can maintain any licensing leverage in this domain.
Should your team run an FTO against US7933431B2?
Yes — particularly if your product involves camera-based input detection, gesture recognition, depth sensing, or image-triggered device interaction in handheld or mobile form factors. Although 28 of 31 claims have been cancelled by the Federal Circuit’s affirmance, claims 11 and 13 remain enforceable. Any product team operating in adjacent camera sensing technology spaces — including AR overlays, mobile gaming controllers, or smart home devices with camera interaction — should confirm non-infringement against the surviving claims before launch or scaling.
PatSnap Eureka’s FTO Search Agent can map your product’s camera sensing feature set against the surviving claim language of US7933431B2, identify the prosecution history and any claim amendments that shaped claims 11 and 13, and surface related Apple and LG portfolio patents that may present parallel risk. Eureka also tracks ongoing Apple enforcement and inter partes review activity in the mobile sensing space, giving R&D and product teams a real-time picture of where the IP risk boundary currently sits.
Run a freedom-to-operate analysis on US7933431B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit Appeals in Mobile Camera and Sensing Patent Disputes
Cases before the Federal Circuit involving PTAB patentability challenges to camera-based sensing and mobile device interaction patents, including related Apple and LG proceedings.
What Apple v. LG signals for the mobile camera sensing IP landscape
A Federal Circuit affirmance of mass PTAB cancellation sends a clear signal to patent holders and challengers across the mobile imaging sector.
Broad camera sensing claims face a stiff prior art gauntlet at the PTAB
The cancellation of 28 of 31 claims suggests the ‘431 patent’s broader claim set was vulnerable to prior art combinations that the PTAB found compelling. Companies holding or acquiring camera-based sensing patents should audit claim breadth against the growing PTAB prior art record in this technology space before asserting or transacting on those portfolios.
Surviving claims 11 and 13 remain live — monitor for downstream enforcement
Apple retains enforceable rights in claims 11 and 13 of US7933431B2. Product teams building camera-driven interaction features in mobile, gaming, or handheld devices should conduct a focused FTO review of these two surviving claims. Their narrower scope may still cover specific implementation approaches that warrant design-around analysis.
Apple v LG — key questions answered
The Federal Circuit affirmed the PTAB’s holding that claims 1–10, 12, and 14–31 of US7933431B2 are unpatentable, while confirming that claims 11 and 13 were not shown to be unpatentable. Apple’s remaining arguments were found unpersuasive. The decision was issued on 4 March 2025, closing the appeal after 755 days.
Claims 11 and 13 of US7933431B2 survived. The PTAB found that LG did not meet its burden of proving these two claims unpatentable, and the Federal Circuit affirmed that finding. The remaining 28 claims — claims 1–10, 12, and 14–31 — were confirmed unpatentable on appeal.
US7933431B2 covers camera-based sensing in handheld, mobile, gaming, and other consumer devices. This technology underpins gesture recognition, depth sensing, and image-triggered device interaction — capabilities now standard in smartphones, AR/VR headsets, and gaming peripherals. The patent’s assertion between Apple and LG reflects its relevance to core mobile platform differentiation.
With 28 of 31 claims cancelled and affirmed as unpatentable, LG Electronics and third parties in the camera sensing space have significantly improved freedom to operate under US7933431B2. The affirmance is final at this appellate level. Companies should still conduct a focused FTO review of surviving claims 11 and 13 before concluding full clearance.
Apple’s available options after a Federal Circuit panel affirmance include petitioning for en banc rehearing before the full Federal Circuit or filing a petition for certiorari to the US Supreme Court. Both paths face a high bar. The Federal Circuit’s disposal of all remaining arguments as ‘unpersuasive’ suggests a weak record for further challenge, and the PTAB invalidity ruling should be treated as effectively final for commercial planning purposes.
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