Flygrip v. Popsockets: Federal Circuit Affirms Grip Patent Invalidity (Case 24-1311)
Flygrip, Inc. appealed the cancellation of US10800024B2 — a compacting grip technology for handheld devices — against Popsockets, LLC. The Federal Circuit affirmed the unpatentability finding in a Rule 36 judgment after 650 days of proceedings, extinguishing Flygrip’s patent rights in this technology.
Flygrip’s grip patent cancelled as Federal Circuit sides with Popsockets
Flygrip, Inc. filed its Federal Circuit appeal (Case No. 24-1311) on 29 December 2023, challenging a finding that US10800024B2 — directed to a compacting grip accessory for handheld devices — was unpatentable. The appeal was brought against Popsockets, LLC, the dominant commercial player in the collapsible phone-grip market. The patent in suit, filed under application number US16/507994, covers the mechanical design of a grip that compacts against the back of a mobile device.
On 9 October 2025, the Federal Circuit issued a Rule 36 affirmance — a single-line judgment confirming the lower tribunal’s unpatentability determination without a written opinion. The basis of termination is recorded as ‘Unpatentable,’ confirming that Flygrip’s patent has been cancelled. A Rule 36 judgment signals the appellate panel found the lower decision free of reversible legal or factual error, but provides no published reasoning for practitioners to analyse.
The 650-day duration of this appeal is consistent with contested patentability proceedings at the Federal Circuit involving inter partes review or post-grant review affirmances. The Rule 36 disposition suggests the panel found the invalidity arguments sufficiently resolved below to require no further elaboration. What remains unknown from the public record is the precise prior-art basis or claim construction issue that drove the original unpatentability finding, and whether Flygrip may seek Supreme Court certiorari.
Filing to Unpatentable in 650 days
650 days — longer than the Federal Circuit median appeal resolution of roughly 18 months
Federal Circuit affirms: what the Rule 36 judgment means for both parties
A Rule 36 affirmance: no reversible error, no written opinion
Under Federal Circuit Rule 36, the court may enter a judgment of affirmance without opinion where it determines the lower tribunal committed no reversible error. It is not a default or procedural dismissal — the panel actively reviewed the record and concluded the unpatentability finding was correct. The absence of a written opinion means no new legal precedent is created, but the underlying cancellation of US10800024B2 is fully binding.
Rule 36 — no written opinion issuedFlygrip’s grip patent is cancelled — enforcement options exhausted at this level
The affirmance confirms that US10800024B2 is unpatentable, stripping Flygrip of any enforcement rights under the patent. Flygrip cannot assert this patent against Popsockets or any third party. The only remaining avenue would be a petition for certiorari to the Supreme Court, which is rarely granted in patent validity disputes. Practically, Flygrip must rebuild any IP position in this product category from alternative patents or new filings.
Patent cancelled — no further enforcementPopsockets prevails — cleared to operate without the Flygrip patent
Popsockets secured affirmance of the unpatentability ruling, achieving freedom to operate in the compacting grip space without the threat of US10800024B2. Represented by Irell & Manella, LLP, Popsockets successfully defended the cancellation through appeal. The Rule 36 judgment also prevents Flygrip from re-litigating the same validity arguments, providing Popsockets with a durable resolution short of any Supreme Court intervention.
Popsockets cleared — durable FTO achievedCompacting grip market: Popsockets’ competitive position strengthened
The cancellation of Flygrip’s core patent removes a potential design-around constraint for Popsockets and raises the bar for any competitor seeking to exclude Popsockets from the compacting grip market via this patent family. Other grip accessory manufacturers should note that prior art grounds sufficient to cancel this patent have now survived Federal Circuit review. Any company building on similar mechanical grip concepts should audit its portfolio against the prior art cited in the underlying proceeding.
Competitor IP risk lowered in grip techFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Flygrip, Inc. | Company | Phone-grip technology company — holder of US10800024B2, compacting grip for handheld devicesSearch in Eureka ↗ |
| Defendant | Popsockets, LLC | Company | Popsockets, LLC — maker of collapsible grips and stands for mobile devicesSearch in Eureka ↗ |
| Plaintiff counsel | Gregory J. Gonsalves | Attorney | Counsel for Flygrip, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Robert Katz | Attorney | Counsel for Flygrip, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Katz PLLC | Law Firm | Representing Flygrip, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Law Office of Dr. Gregory J. Gonsalves | Law Firm | Representing Flygrip, Inc.Search in Eureka ↗ |
| Defendant counsel | Jonathan M. Lindsay | Attorney | Counsel for Popsockets, LLCSearch in Eureka ↗ |
| Defendant law firm | Irell & Manella, LLP | Law Firm | Representing Popsockets, LLCSearch 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 one-line Rule 36 judgment — ‘AFFIRMED’ — confirms that the panel reviewed the full record and found no reversible error in the unpatentability determination below. Rule 36 is not a summary procedure; affirmance requires the court to be satisfied that the written opinion of the lower tribunal adequately explains the legal and factual basis for cancellation. The absence of a new opinion means no fresh claim-construction guidance is published, but the cancellation of US10800024B2 is final and binding at this appellate level, subject only to a potential Supreme Court petition.
US10800024B2 — Compacting grip for handheld devices
US10800024B2, filed under application number US16/507994, covers a compacting grip technology designed to attach to the rear of a handheld device and collapse when not in use. The patent sits at the intersection of mechanical design and consumer electronics accessories — a high-volume, low-margin product category where subtle form-factor innovations can represent meaningful competitive differentiation. Its cancellation removes what Flygrip had positioned as a proprietary mechanical advantage in the collapsible grip market.
The compacting grip segment is dominated commercially by Popsockets, making any patent asserting rights over the core mechanics of this product type commercially significant. The Federal Circuit’s affirmance of unpatentability suggests the claims of US10800024B2 were not sufficiently distinguished from the prior art — a finding that may have implications for related continuation or divisional applications filed by Flygrip, if any exist. Competitors and licensees in the grip accessory space should audit their own claim portfolios against the same prior-art corpus.
Should you run an FTO against US10800024B2?
Any company designing, manufacturing, or importing compacting or collapsible grip accessories for smartphones and tablets should note that US10800024B2 has now been cancelled by Federal Circuit affirmance. The patent no longer poses a direct infringement risk for products covered by its claims. However, R&D and product teams should verify whether Flygrip holds related applications — continuations, divisionals, or continuations-in-part — that may cover overlapping mechanical grip concepts with different claim language.
PatSnap Eureka’s FTO Search Agent can map the full Flygrip patent family around application US16/507994, identify any surviving related applications, and cross-reference the prior art that grounded the unpatentability finding. This allows your legal and product teams to confirm clear freedom to operate across the compacting grip design space, rather than relying solely on the cancellation of the single granted patent.
Run a freedom-to-operate analysis on US10800024B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit appeals in mobile accessory patent validity disputes
Federal Circuit affirmances of patent cancellation in the consumer electronics accessories sector — cases involving mechanical grip, mount, and attachment device patents reviewed under Rule 36.
What this case signals for the mobile accessory IP landscape
A Rule 36 affirmance of patent cancellation sends a clear message about patent durability in the competitive phone-grip segment.
Rule 36 disposals offer winners certainty but no precedent to cite
Popsockets gains clean freedom to operate, but neither party receives a published claim-construction or prior-art analysis. Companies monitoring the mobile accessory space cannot rely on this judgment for doctrinal guidance — they must analyse the underlying proceedings directly to understand which prior art was fatal to US10800024B2.
Cancelled grip patents reset the enforcement map for all accessory makers
With US10800024B2 cancelled, any other IP holder in the compacting-grip space faces a higher evidentiary bar if they assert comparable claims. The prior art that defeated Flygrip’s patent likely anticipates or renders obvious similar mechanical grip designs, making it material to FTO and validity opinions across the sector.
Flygrip v Popsockets — key questions answered
A Rule 36 affirmance means the Federal Circuit reviewed the record and found no reversible error in the lower tribunal’s unpatentability determination. It is not a procedural dismissal — the cancellation of US10800024B2 is confirmed as final at the appellate level. No written opinion was issued, so no new legal precedent was created by this judgment.
No. The Federal Circuit’s affirmance of the unpatentability ruling means US10800024B2 has been cancelled and is no longer enforceable. Flygrip cannot assert this patent against Popsockets or any other party. The only remaining recourse would be a petition for certiorari to the Supreme Court, which is rarely granted in patent validity matters.
The public record records the basis of termination as ‘Unpatentable,’ but the Federal Circuit issued a Rule 36 judgment without a written opinion, so the specific prior-art grounds or claim-construction rationale are not published at the appellate level. The underlying proceedings before the lower tribunal would contain the detailed invalidity analysis.
US10800024B2 covers a compacting grip for handheld devices — a mechanical accessory that attaches to the rear of a smartphone or tablet and compacts flat when not in use. This places it in direct commercial competition with Popsockets’ core collapsible grip and stand products, which is the context for the underlying dispute.
Following the Federal Circuit’s affirmance of cancellation, US10800024B2 no longer poses a legal barrier to Popsockets or any other party. However, companies operating in the compacting grip space should verify that no related Flygrip applications — continuations or divisionals — cover substantially similar subject matter under different claim language before concluding that full freedom to operate exists.
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