Bin Liu v. Unincorporated Associations — Fitness Frame Patent Transferred in 2 Days
Bin Liu, holder of US11911650B1 covering a multifunctional fitness frame with reversible pedal structure, filed an infringement action against a Schedule A defendant group in Virginia Eastern District Court. The case was transferred intradistrict to the Norfolk Division within just 2 days of filing, now proceeding as case 2:25cv792.
Schedule A fitness equipment case rerouted to Norfolk in 48 hours
On December 9, 2025, plaintiff Bin Liu filed an infringement action in the Virginia Eastern District Court asserting US11911650B1, a patent covering a multifunctional fitness frame with a reversible pedal structure, against a group of unincorporated associations identified on Schedule A. This filing pattern — a single plaintiff asserting product-specific IP against a roster of anonymous or pseudonymous sellers — is consistent with enforcement strategies commonly directed at e-commerce marketplace vendors.
Within two days of filing, on December 11, 2025, the court ordered an intradistrict transfer to the Norfolk Division, where the case is now docketed as 2:25cv792. No substantive merits ruling was issued in the Alexandria docket. The transfer does not resolve the underlying infringement claims; those proceed before the Norfolk court with the same parties and patent at issue.
The two-day lifespan of the Alexandria docket is notable primarily as a procedural step rather than a substantive development. Intradistrict transfers of this kind typically reflect venue assignment protocols rather than any strategic or contested motion. The underlying merits — including claim scope, defendant identity, and any injunctive relief sought — remain entirely unresolved from the public record at this stage.
Filing to Case Transferred in 2 days
Resolved in 2 days — transferred before any substantive hearing
Intradistrict transfer: what the venue change means for this case
Intradistrict transfer moves the case, not the claims
An intradistrict transfer reassigns a case from one divisional courthouse to another within the same federal district. Here, the case moved from the Alexandria Division to the Norfolk Division of Virginia Eastern District Court. The underlying infringement claims, parties, and patent at issue remain unchanged — only the presiding judge and courthouse location shift. The Norfolk docket (2:25cv792) is the operative proceeding going forward.
Procedural — no merits rulingLiu’s infringement claims are preserved and active in Norfolk
The transfer does not prejudice Bin Liu’s position. All rights asserted under US11911650B1 carry over to the Norfolk docket. Plaintiff’s counsel at Dnl Zito Castellano PLLC will continue the action before the Norfolk Division. If any emergency or ex parte relief was sought — common in Schedule A cases — that application would be addressed by the Norfolk court.
Claims intact — litigation continuesSchedule A sellers now face proceedings in Norfolk Division
The unincorporated associations named on Schedule A — typically online marketplace vendors — will now be subject to any orders, injunctions, or service processes issued by the Norfolk Division court. No defendant counsel has appeared on the public docket at this stage, which is consistent with early-stage Schedule A enforcement actions where defendants may be unaware of the filing or strategically non-responsive until injunctive relief is threatened.
Norfolk Division — case 2:25cv792Fitness equipment IP enforcement via Schedule A is an active risk vector
Schedule A patent cases targeting e-commerce sellers of fitness equipment have increased as product-specific utility patents — like US11911650B1 covering reversible pedal structures — are asserted against marketplace listings. Sellers of multifunctional fitness frames with pedal mechanisms should monitor this Norfolk proceeding and assess whether their products fall within the claims of US11911650B1. Early FTO analysis reduces exposure to emergency injunctive relief.
E-commerce enforcement riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Bin Liu | Individual | Patent holder asserting US11911650B1 — multifunctional fitness frame technologySearch in Eureka ↗ |
| Defendant | The Unincorporated Associations Identified on Schedule A | Individual | Unincorporated associations identified on Schedule A — likely e-commerce marketplace sellersSearch in Eureka ↗ |
| Plaintiff counsel | Kendal Meredith Sheets | Attorney | Counsel for Bin LiuSearch in Eureka ↗ |
| Plaintiff law firm | Dnl Zito Castellano PLLC | Law Firm | Representing Bin LiuSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Virginia Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s transfer order — ‘Intradistrict Transfer to Norfolk Division. See Norfolk case 2:25cv792’ — is a purely administrative disposition. It carries no finding on the merits of the infringement claims under US11911650B1, no ruling on injunctive relief, and no assessment of defendant liability. The transfer simply reassigns divisional venue within Virginia Eastern District Court. All substantive issues remain open before the Norfolk court.
US11911650B1 — multifunctional fitness frame with reversible pedal structure
US11911650B1, filed as application US18/212728, protects a multifunctional fitness frame incorporating a reversible pedal structure. The reversible pedal mechanism is the technically distinctive element — it suggests a frame designed to serve multiple exercise modes by allowing pedal orientation to be altered, potentially enabling both forward and reverse motion exercises or accommodating different user configurations. As a B1 grant, the patent issued without any post-grant amendment, suggesting the claims survived examination as filed.
For the fitness equipment sector, a utility patent on a reversible pedal frame structure carries meaningful commercial significance. Exercise equipment combining multiple functions in a single frame is a competitive e-commerce category, and a structural claim on the pedal reversibility mechanism could capture a broad range of multi-mode fitness products. Sellers and manufacturers operating in the foldable or multifunctional home gym equipment space should assess claim-by-claim exposure, particularly where their products incorporate any form of adjustable or reversible pedal orientation.
Should you run an FTO analysis against US11911650B1?
Any manufacturer, importer, or online seller of multifunctional fitness frames — particularly those featuring adjustable, reversible, or multi-directional pedal mechanisms — should consider a freedom-to-operate analysis against US11911650B1. The Schedule A enforcement model means that infringement claims can be filed and injunctive relief sought with minimal advance notice. Products listed on Amazon, Alibaba, or similar marketplaces are particularly exposed given the enforcement pattern visible in this case.
PatSnap Eureka’s FTO Search Agent can map the claims of US11911650B1 against your product specifications, identify prior art that may narrow claim scope, and flag related applications in the same patent family. Eureka’s litigation monitoring also tracks the Norfolk docket (2:25cv792) in real time, alerting you to TRO applications, claim construction orders, or default judgments that could affect your risk exposure in the fitness equipment category.
Run a freedom-to-operate analysis on US11911650B1 to assess your product’s exposure
Run FTO in Eureka →Similar Schedule A fitness equipment patent cases in Virginia Eastern
Explore related patent infringement actions asserting fitness hardware patents against Schedule A defendants in Virginia Eastern District Court and comparable venues.
What this case signals for fitness equipment IP enforcement
Schedule A enforcement of fitness hardware patents is accelerating. This case illustrates the speed and procedural mechanics involved.
Schedule A cases move fast — sellers have little warning before injunctions
This case was filed and transferred within 48 hours, before any defendant could respond. Schedule A enforcement actions frequently seek ex parte temporary restraining orders that can freeze marketplace accounts and funds. Sellers in the fitness equipment category should maintain ongoing FTO monitoring rather than reacting after filing.
Intradistrict transfer is procedural — the patent risk is unchanged
The Alexandria-to-Norfolk transfer has no bearing on claim strength or enforceability of US11911650B1. Any third party assessing risk from this patent should focus on the Norfolk docket (2:25cv792) for substantive developments including claim construction, injunctive motions, and any default proceedings against Schedule A defendants.
Liu v Unincorporated — key questions answered
The case was filed on December 9, 2025 in Virginia Eastern District Court asserting patent US11911650B1 (multifunctional fitness frame) against Schedule A defendants. On December 11, 2025 — two days after filing — the court ordered an intradistrict transfer to the Norfolk Division. The case continues as 2:25cv792 with no merits ruling issued.
US11911650B1, filed as US18/212728, covers a multifunctional fitness frame with a reversible pedal structure. The patent was asserted against a group of unincorporated associations — consistent with e-commerce marketplace seller enforcement — for allegedly infringing this fitness equipment design. The reversible pedal mechanism is the key technical claim element.
An intradistrict transfer moves a case between divisions within the same federal district. Here, the case moved from Alexandria to Norfolk Division of Virginia Eastern. The infringement claims under US11911650B1 are unchanged; only the courthouse and presiding judge shift. The Norfolk proceeding (2:25cv792) is where substantive developments will occur.
Schedule A defendants are typically unnamed or pseudonymous online sellers — often marketplace vendors — identified by a list appended to the complaint. Patent holders use this model to simultaneously target multiple sellers of allegedly infringing products. Courts can issue ex parte TROs and asset freezes against marketplace accounts before defendants have an opportunity to respond, making early FTO analysis critical for sellers in the targeted product category.
Following the intradistrict transfer ordered on December 11, 2025, the case is now before the Norfolk Division of Virginia Eastern District Court, docketed as 2:25cv792. All future substantive rulings, including any injunctive relief or merits decisions, will be issued by the Norfolk court.
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