Luxer Corp. v. ButterflyMX, Inc. — Federal Circuit Appeal Voluntarily Dismissed
Luxer Corp. and ButterflyMX, Inc. jointly stipulated to dismiss this Federal Circuit infringement appeal — Case No. 25-1481 — just 45 days after filing. The dispute centres on US11625675B2, covering intelligent locker and package delivery solutions. Notably, two parallel appeals against Package Concierge and Quadient remain active.
Federal Circuit appeal dropped in 45 days — but the broader war continues
Luxer Corp., a provider of intelligent locker and package delivery solutions including Luxer Lockers, Luxer Rooms, and Luxer Fridges, brought an infringement appeal at the Court of Appeals for the Federal Circuit against ButterflyMX, Inc., targeting ButterflyMX’s Package Room product. The asserted patent, US11625675B2, covers smart locker and package management technology. The appeal was filed on 25 February 2025.
On 11 April 2025 — just 45 days after filing — the parties jointly filed a stipulation of voluntary dismissal under Federal Rule of Appellate Procedure 42(b)(1). The stipulation provides that each party will bear its own attorneys’ fees and costs. Because the dismissal was voluntary and the public record does not specify whether it was with or without prejudice, the legal finality of the resolution as between these two parties remains ambiguous on the public record.
The 45-day resolution is notably swift for a Federal Circuit appeal and may suggest early settlement negotiations, licensing discussions, or a strategic recalibration by Luxer. Critically, the stipulation explicitly carves out two co-pending consolidated appeals — Case Nos. 2025-1482 and 2025-1483 — against Package Concierge, Inc. and Quadient, Inc. respectively, confirming that Luxer’s broader enforcement campaign around US11625675B2 remains very much in play.
Filing to Voluntary dismissal in 45 days
45 days — resolved well below the typical Federal Circuit appeal timeline of 12–18 months
Voluntarily dismissed: what the stipulation means for both parties
FRAP 42(b)(1) stipulated dismissal — no merits adjudicated
Federal Rule of Appellate Procedure 42(b)(1) permits parties to dismiss an appeal by filing a signed stipulation. Unlike a court-ordered dismissal, this route requires no judicial finding on the merits. The Federal Circuit did not rule on infringement, validity, or claim scope. The dismissal is a procedural endpoint for this specific case number only — it carries no precedential weight on the underlying patent.
Procedural dismissal — no merits rulingWith or without prejudice? The public record is silent
A voluntary dismissal ‘with prejudice’ permanently bars re-filing the same claim; ‘without prejudice’ preserves the right to refile. The stipulation in Case No. 25-1481 does not specify either. Under FRAP 42(b)(1), the default prejudice treatment at the appellate level can depend on the underlying district court posture and what was dismissed. Practitioners monitoring this dispute should not assume the ButterflyMX matter is permanently resolved.
Prejudice terms unspecifiedLuxer retains US11625675B2 and continues parallel enforcement
Voluntarily dismissing one appeal does not affect the validity or enforceability of US11625675B2. Luxer’s decision to preserve Case Nos. 2025-1482 and 2025-1483 against Package Concierge and Quadient signals continued enforcement intent. Luxer may have resolved its dispute with ButterflyMX bilaterally — through a licence, cross-licence, or commercial agreement — without prejudicing its broader campaign.
Patent survives — enforcement continuesButterflyMX exits this appeal — exposure picture remains unclear
ButterflyMX secured an exit from Case No. 25-1481 without an adverse merits ruling, and the cost-sharing arrangement avoids any fee-shifting exposure. However, because the prejudice terms are undisclosed and two related Luxer appeals remain active against competitors in the same package management space, ButterflyMX’s long-term freedom to operate under US11625675B2 cannot be confirmed from the public record alone.
Exit without adverse rulingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | LUXER CORP. | Company | Intelligent locker and package delivery solutions provider — holder of US11625675B2Search in Eureka ↗ |
| Defendant | BUTTERFLYMX, INC. | Company | ButterflyMX, Inc. — smart access and package management technology companySearch in Eureka ↗ |
| Plaintiff counsel | Jason Wyman Balich | Attorney | Counsel for LUXER CORP.Search in Eureka ↗ |
| Plaintiff counsel | Michael A. Albert | Attorney | Counsel for LUXER CORP.Search in Eureka ↗ |
| Plaintiff law firm | Wolf Greenfield & Sacks PC | Law Firm | Representing LUXER CORP.Search in Eureka ↗ |
| Defendant counsel | Gabriel K. Bell | Attorney | Counsel for BUTTERFLYMX, INC.Search in Eureka ↗ |
| Defendant counsel | Gregory Sobolski | Attorney | Counsel for BUTTERFLYMX, INC.Search in Eureka ↗ |
| Defendant counsel | Nicole Elena Bruner | Attorney | Counsel for BUTTERFLYMX, INC.Search in Eureka ↗ |
| Defendant counsel | Richard Gregory Frenkel | Attorney | Counsel for BUTTERFLYMX, INC.Search in Eureka ↗ |
| Defendant law firm | Latham & Watkins, LLP | Law Firm | Representing BUTTERFLYMX, INC.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The stipulation is precise in its scope: it dismisses only Case No. 25-1481 and expressly excludes the two consolidated co-pending appeals. The parties’ agreement to bear their own costs — rather than seeking fee-shifting under 35 U.S.C. § 285 — suggests neither party viewed the other’s position as exceptional or frivolous. The absence of any merits language means US11625675B2 emerges from this dismissal with its enforceability entirely intact and no appellate guidance on claim scope.
US11625675B2 — Intelligent Locker and Package Delivery Management Systems
US11625675B2 covers intelligent locker and package delivery management technology — including the smart access, authentication, and control systems that underpin products such as Luxer Lockers, Luxer Rooms, and Luxer Fridges. Filed under application number US15/222917, the patent represents Luxer’s core IP position in an increasingly competitive market for automated package receipt and retrieval infrastructure, particularly in multi-family residential and commercial building environments.
As same-day and last-mile delivery volumes escalate, the patent’s claims over intelligent locker architecture are strategically significant. Luxer’s willingness to pursue three separate Federal Circuit appeals simultaneously against ButterflyMX, Package Concierge, and Quadient — all competitors in the package management and smart locker space — indicates that Luxer treats US11625675B2 as a foundational competitive asset rather than a defensive patent. Any company commercialising package room or smart locker technology should treat this patent as a high-priority monitoring target.
Should your product team run an FTO against US11625675B2?
If your company develops, sells, or integrates intelligent locker systems, package room technology, smart access hardware, or automated delivery management solutions — including products that overlap with ButterflyMX’s Package Room, or comparable offerings — US11625675B2 is a patent you cannot afford to ignore. Luxer is actively enforcing it at the Federal Circuit against three named defendants, and the absence of any adverse merits ruling means its claims remain fully enforceable.
PatSnap Eureka’s FTO Search Agent can map the claim language of US11625675B2 against your product’s technical architecture, flag potential claim overlap, and surface prior art candidates that could support an IPR petition. With two live Federal Circuit appeals still in progress, real-time docket monitoring through Eureka ensures your IP team receives immediate alerts if claim construction guidance emerges from the Package Concierge or Quadient proceedings.
Run a freedom-to-operate analysis on US11625675B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit patent appeals in smart locker and package delivery technology
Federal Circuit infringement appeals involving smart locker, package management, and automated delivery access technology — comparable in technology domain and appellate posture to Luxer v. ButterflyMX.
What this case signals for the smart locker and package delivery IP landscape
Luxer’s selective dismissal against ButterflyMX — while pressing on against two other defendants — suggests a deliberate, targeted enforcement strategy around US11625675B2.
Parallel appeals signal a coordinated enforcement campaign, not a one-off dispute
With Case Nos. 2025-1482 and 2025-1483 explicitly preserved against Package Concierge and Quadient, Luxer is running a multi-front campaign around US11625675B2. Companies operating in the intelligent locker, package management, and smart access space should assess their exposure to this patent family before receiving a demand letter.
A 45-day voluntary dismissal at the Federal Circuit typically suggests off-record resolution
Appellate dismissals this fast rarely reflect litigation fatigue alone. The mutual cost-bearing arrangement and surgical carve-out of the other two appeals are consistent with a bilateral commercial resolution — possibly a licence or partnership — between Luxer and ButterflyMX. Competitors should watch for any commercial relationship emerging between the two companies.
LUXER v BUTTERFLYMX — key questions answered
The Federal Circuit appeal was voluntarily dismissed by joint stipulation under FRAP 42(b)(1) on 11 April 2025, just 45 days after filing. The parties agreed to bear their own fees and costs. No merits ruling was issued. Two related Luxer appeals — against Package Concierge and Quadient — were explicitly preserved and remain pending.
Luxer Corp. asserted US11625675B2, filed under application number US15/222917. The patent covers intelligent locker and package delivery management technology. ButterflyMX’s accused product was its Package Room offering. Luxer’s own products in this space include Luxer Lockers, Luxer Rooms, and Luxer Fridges.
The public record does not specify. The stipulation filed under FRAP 42(b)(1) is silent on whether the dismissal is with or without prejudice. This ambiguity means the question of whether Luxer could refile infringement claims against ButterflyMX under US11625675B2 cannot be definitively answered from the public docket alone.
Yes. The dismissal stipulation explicitly excludes Case Nos. 2025-1482 (Luxer Corp. v. Package Concierge, Inc.) and 2025-1483 (Luxer Corp. v. Quadient, Inc.), both of which remain pending at the Federal Circuit. These consolidated cases involve the same or related patent assertions and are the primary venue for any future appellate guidance on US11625675B2.
Federal Rule of Appellate Procedure 42(b)(1) allows parties to voluntarily dismiss an appeal by filing a stipulation signed by all parties. It is a procedural mechanism that terminates the appeal without any merits adjudication by the court. In this case, it means the Federal Circuit issued no ruling on infringement, validity, or claim scope of US11625675B2 as between Luxer and ButterflyMX.
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