Dropcases v. Schedule A Defendants: EV Charging Adapter Design Patent Dismissed
Dropcases, Ltd. filed a design patent infringement action in the Northern District of Illinois against a Schedule A group of defendants, asserting USD1078633S covering electric vehicle charging adapters. The case resolved in 127 days when Dropcases voluntarily dismissed without prejudice, with each side bearing its own costs.
Design patent enforcement against EV adapter sellers ends before merits
Dropcases, Ltd. filed Case No. 1:25-cv-07763 in the Northern District of Illinois on July 9, 2025, before Judge Sara L. Ellis. The complaint asserted infringement of USD1078633S — a design patent covering the ornamental appearance of an electric vehicle charging adapter — against an unnamed group of online marketplace sellers identified collectively as Schedule A defendants, a format commonly used in e-commerce enforcement actions targeting multiple sellers simultaneously.
On October 13, 2025, Dropcases filed a voluntary dismissal pursuant to Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure, terminating the action without prejudice. The dismissal notice specified that each party would bear its own attorneys’ fees and costs. No merits ruling, claim construction, or injunctive relief order was entered. The case was formally closed on November 13, 2025.
At 127 days, the case closed well before typical district court scheduling milestones. The without-prejudice designation preserves Dropcases’ right to refile, which may suggest the dismissal was strategic — potentially reflecting settlement negotiations, defendant default, or portfolio reassessment — though the public record does not disclose the underlying reason. The absence of defendant counsel on record is consistent with the Schedule A enforcement model, where defendants frequently do not appear.
Filing to Voluntary dismissal in 127 days
127 days — resolved before typical district court scheduling order deadlines
Voluntarily dismissed: what the Rule 41 exit means for both sides
Rule 41(a)(1)(A)(i): plaintiff’s unilateral right to exit
Rule 41(a)(1)(A)(i) permits a plaintiff to dismiss an action without a court order by filing a notice before the opposing party serves an answer or a motion for summary judgment. This is the earliest and cleanest exit mechanism available. It requires no judicial approval and leaves no merits determination on record. The case ends procedurally, not substantively.
Pre-answer voluntary dismissalWithout prejudice: what the public record does — and doesn’t — say
A dismissal without prejudice means the claims are not extinguished — Dropcases retains the right to refile the same infringement allegations. A dismissal with prejudice would have barred refiling permanently. The notice here explicitly states ‘without prejudice,’ but the public record does not explain why the case was dropped at this stage. Whether a private settlement, licensing agreement, or tactical repositioning drove the decision remains undisclosed.
Refiling right preservedDefendants exit without an infringement finding — for now
The Schedule A defendants face no injunction, damages award, or finding of infringement from this action. However, the without-prejudice nature of the dismissal means exposure is not permanently extinguished. Defendants who continue selling products that may read on USD1078633S should treat this dismissal as a pause, not a clearance. Any resumed sales could prompt a renewed filing in the same or a different jurisdiction.
No permanent clearanceEV adapter market: design patent enforcement pressure persists
Schedule A enforcement actions against EV accessory sellers signal active design patent policing in the EV charging adapter segment. A without-prejudice exit preserves all enforcement options and may indicate that Dropcases is consolidating its strategy rather than abandoning it. Sellers and distributors of EV charging adapters should treat USD1078633S as an active enforcement risk and consider FTO analysis before entering or expanding in this product category.
Active enforcement risk remainsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Dropcases, Ltd., | Company | Design patent holder in EV accessories — holder of USD1078633SSearch in Eureka ↗ |
| Defendant | The Partnerships And Unincorporated Associations Identified On Schedule A, | Individual | Unnamed online marketplace sellers of EV charging adapters identified on Schedule ASearch in Eureka ↗ |
| Plaintiff counsel | James Lee Lovsin | Attorney | Counsel for Dropcases, Ltd.,Search in Eureka ↗ |
| Plaintiff counsel | Kate E. Cassidy | Attorney | Counsel for Dropcases, Ltd.,Search in Eureka ↗ |
| Plaintiff law firm | McDonnell, Boehnen, Hulbert & Berghoff LLP | Law Firm | Representing Dropcases, Ltd.,Search in Eureka ↗ |
| Plaintiff law firm | Wiggin & Dana LLP | Law Firm | Representing Dropcases, Ltd.,Search in Eureka ↗ |
| Presiding judge | Judge Sara L. Ellis | Judge | Illinois Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i), indicating no answer or summary judgment motion had been filed by the defendants at the time of dismissal — consistent with Schedule A actions where defendants frequently do not appear. The explicit ‘without prejudice’ designation means the district court retains no jurisdiction over the merits, and Dropcases is not barred from asserting USD1078633S against these or similar defendants in a future action. The cost-sharing provision is neutral and does not imply any admission or concession by either side.
USD1078633S — ornamental design for an EV charging adapter
USD1078633S is a United States design patent — identified by application number US29/952628 — protecting the ornamental appearance of an electric vehicle charging adapter. Design patents cover the visual, non-functional characteristics of a product, distinct from utility patents which protect functional innovations. Protection under a design patent is assessed through the ‘ordinary observer’ test established in Egyptian Goddess v. Swisa, asking whether an ordinary purchaser would be deceived into thinking the accused design is the same as the patented design.
As EV adoption accelerates, the aftermarket for charging adapters — including J1772, CCS, and proprietary connector types — has expanded rapidly, attracting significant manufacturing activity in Asia and online marketplace resale globally. Design patent enforcement in this segment is intensifying as original equipment and accessory designers seek to differentiate branded products from lower-cost alternatives. USD1078633S represents a specific visual design claim in this competitive space, and its enforcement history through Schedule A actions suggests active commercial policing by Dropcases.
Should your EV charging adapter product be cleared against USD1078633S?
Any company manufacturing, importing, distributing, or selling electric vehicle charging adapters — particularly through online marketplaces such as Amazon, eBay, or Alibaba storefronts — should conduct a freedom-to-operate assessment against USD1078633S. The Schedule A enforcement model means that sellers can be named as defendants en masse without prior notice. The without-prejudice dismissal in this case confirms that Dropcases has not abandoned the patent and may refile against overlapping or new defendant groups.
PatSnap Eureka’s FTO Search Agent enables R&D and legal teams to run visual and claim-scope comparisons against design patents including USD1078633S, mapping your product’s ornamental features against the patent’s drawings. Eureka can also surface related design patent families, monitor new filings by Dropcases, and flag Schedule A actions in the EV accessories segment — giving your team early warning before litigation exposure materialises.
Run a freedom-to-operate analysis on USD1078633S to assess your product’s exposure
Run FTO in Eureka →Similar EV accessories design patent cases in N.D. Illinois
Explore related Schedule A design patent enforcement actions in the EV charging accessories sector filed in the Northern District of Illinois.
What this case signals for the EV accessories IP landscape
A rapid Schedule A filing and without-prejudice exit is a recognizable enforcement pattern — understand what it means for your position.
Schedule A tactics are common in design patent EV enforcement
Filing against unnamed groups of online sellers under a Schedule A is a well-established enforcement tactic targeting marketplace infringers at scale. The absence of defendant counsel and rapid resolution here is consistent with this model. Companies selling EV charging accessories through online platforms should audit their listings against active design patents including USD1078633S.
Without-prejudice dismissals preserve future enforcement leverage
Dropcases retains the right to refile. Where a plaintiff dismisses without prejudice and bears its own costs, it typically suggests either a private resolution or a strategic repositioning — not weakness. Competitors and sellers should monitor Dropcases’ filing activity and treat this exit as a potential precursor to a refined enforcement campaign.
Dropcases v Partnerships — key questions answered
The case was voluntarily dismissed without prejudice by Dropcases, Ltd. on October 13, 2025, pursuant to Rule 41(a)(1)(A)(i). Each party was to bear its own attorneys’ fees and costs. No merits ruling was entered. The case was formally closed on November 13, 2025.
A dismissal without prejudice means the claims are not permanently extinguished. Dropcases retains the right to refile an infringement action asserting USD1078633S against the same or similar defendants. It does not constitute a finding that the defendants did not infringe, nor does it invalidate the patent.
The patent at issue is USD1078633S (application number US29/952628), a U.S. design patent protecting the ornamental appearance of an electric vehicle charging adapter. Design patents cover non-functional visual characteristics and are enforced using the ‘ordinary observer’ test.
Schedule A enforcement actions name multiple unknown or pseudonymous online marketplace sellers as a group rather than individually. The Northern District of Illinois is a preferred venue for this format due to its established procedural familiarity with such actions and availability of ex parte temporary restraining orders against infringers. Defendants are identified in a sealed schedule filed with the court.
No. The without-prejudice dismissal preserves all of Dropcases’ enforcement rights under USD1078633S. Companies selling EV charging adapters should not treat this dismissal as a clearance. Dropcases may refile in the same or another jurisdiction, and the patent remains valid and enforceable unless separately challenged through IPR or other proceedings.
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