Enio Bianchi v. Alushop Aluminio: Vibration Damper Patent Appeal Dismissed
Individual inventor Enio Bianchi pursued an infringement action against Brazilian aluminium products company Alushop Aluminio Ltda over patent BRMU8400847Y1, covering an arrangement for a vibration damper for a gap-opening device. The Court of Justice of São Paulo ultimately dismissed the appeal, closing the case on 11 December 2024.
Individual inventor’s vibration damper patent claim ends at São Paulo appeal court
Enio Bianchi, an individual patent holder, brought an infringement action against Alushop Aluminio Ltda, a Brazilian aluminium products company, before the Court of Justice of São Paulo. The dispute centred on patent BRMU8400847Y1, which protects an arrangement for a vibration damper used in a device for opening gaps — a mechanical component relevant to the aluminium fixtures and frames sector. The case number is 1022769-76.2018.8.26.0576/50000, indicating the action was originally filed in 2018.
The case was closed on 11 December 2024 following the court’s rejection of a motion for clarification of statement, with the basis of termination recorded as appeal dismissed. The final ruling — ‘I REJECT the motion for clarification of statement’ — indicates that the appellant sought to have the court explain or reconsider aspects of an earlier decision, and the court declined. This procedural closure means the underlying merits of the infringement claim were not re-examined at this appellate stage.
The gap between the 2018 filing year suggested by the case number and the December 2024 closure date implies a prolonged litigation trajectory of approximately six years, which is consistent with complex multi-stage proceedings in Brazilian state courts. The dismissal of a clarification motion as the terminal event suggests the substantive dispute had already been resolved at an earlier stage; the public record does not disclose the outcome of that underlying decision, leaving the ultimate winner unclear from available data alone.
Filing to Appeal Dismissed in 0 days
Case closed 11 December 2024 at the Court of Justice of São Paulo
Appeal dismissed: what the São Paulo court ruling means for both parties
Motion for clarification rejected — appeal ends without merits review
A motion for clarification (embargos de declaração in Brazilian procedure) asks the court to explain, correct, or fill gaps in an earlier ruling. When such a motion is rejected, the prior decision stands exactly as issued, and the appellate proceedings close. This is a procedural termination — the court found no ambiguity or omission warranting clarification — rather than a substantive ruling on whether infringement occurred.
Procedural dismissalBianchi’s clarification bid fails — prior decision unchanged
For Enio Bianchi as plaintiff and presumed appellant, the rejection of the clarification motion means the court did not revisit or expand on the earlier ruling in his favour or against him. Whether the underlying infringement finding was favourable to Bianchi remains unclear from the public record. The dismissal forecloses further proceedings at this appellate level based on this motion, though other avenues may remain depending on the earlier substantive outcome.
No merits re-examinationAlushop Aluminio benefits from procedural finality
For Alushop Aluminio Ltda, the dismissal of the clarification motion provides procedural finality at this stage: the court has declined to reopen or clarify the earlier decision. If the prior substantive ruling was in the defendant’s favour, this closure reinforces that position. The public record does not disclose the terms of the earlier merits decision, so the full commercial impact on Alushop remains uncertain without access to prior hearing documents.
Procedural finality achievedVibration damper IP in aluminium fixtures — litigation risk persists
The six-year duration of this dispute signals that even utility model-level patents in the Brazilian aluminium fixtures sector can generate sustained and costly litigation. Companies manufacturing or distributing components for gap-opening devices in Brazil should monitor BRMU8400847Y1 and related filings. The absence of a clear published merits outcome means freedom-to-operate uncertainty for competitors in this niche mechanical technology area may remain unresolved.
FTO risk — monitor closelyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | ENIO BIANCHI | Individual | Individual inventor — holder of patent BRMU8400847Y1 for a vibration damper arrangementSearch in Eureka ↗ |
| Defendant | ALUSHOP ALUMINIO LTDA | Individual | Alushop Aluminio Ltda — Brazilian aluminium products manufacturer and supplierSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Justice of Sao PauloSearch in Eureka ↗ |
Official order — verbatim text
The recorded verdict — ‘I REJECT the motion for clarification of statement’ — is a procedural disposition rather than a substantive infringement ruling. In Brazilian civil procedure, embargos de declaração (clarification motions) are a standard post-decision tool, but rejection confirms the court found no obscurity, contradiction, or omission in its prior ruling. This phrasing does not establish whether the underlying patent infringement claim succeeded or failed; it only closes this particular procedural pathway. Practitioners should seek the earlier merits decision to assess the true outcome for patent BRMU8400847Y1.
BRMU8400847Y1 — vibration damper arrangement for gap-opening devices
BRMU8400847Y1 is a Brazilian utility model patent protecting an arrangement for a vibration damper integrated into a device designed for opening gaps — a mechanical assembly most directly relevant to aluminium-framed doors, windows, or sliding partition systems. The ‘MU84’ prefix in the Brazilian numbering convention is consistent with a utility model filed in or around 2004, indicating a protection term that would be approaching or at its natural expiry under Brazilian law, which grants utility models 15 years from filing. The patent was asserted in infringement proceedings initiated in 2018.
In the aluminium fixtures and construction hardware sector, vibration damper arrangements perform a functional role in reducing noise, wear, and structural fatigue in gap-opening mechanisms — a commercially significant attribute for building products manufacturers. As individual-inventor patents in this category are less commonly litigated in Brazil, the enforcement of BRMU8400847Y1 by Enio Bianchi against a dedicated aluminium company like Alushop Aluminio signals that even narrow mechanical utility models carry real commercial value and enforcement risk. Competitors supplying similar damper assemblies to the Brazilian construction market should treat this patent as a reference point in clearance searches.
Should you run an FTO against BRMU8400847Y1?
Any company designing, manufacturing, importing, or distributing vibration damper arrangements for gap-opening devices — including aluminium doors, windows, or sliding frames — in the Brazilian market should consider an FTO analysis against BRMU8400847Y1. The patent’s utility model status means it was granted without substantive examination, potentially making its claims broader or more vulnerable than a standard invention patent, but also meaning it was never formally tested for validity prior to litigation. The fact that Bianchi pursued infringement through multiple court stages underscores active enforcement intent.
PatSnap Eureka’s FTO Search Agent can map the claim scope of BRMU8400847Y1 against your product architecture, identify whether the patent’s term has expired under Brazilian law, and surface any related filings in Bianchi’s name or assigned to associated entities. Eureka can also flag co-pending litigation in Brazilian courts involving similar mechanical damper technology, giving your product and legal teams a complete picture of freedom-to-operate risk before market entry or product refresh decisions.
Run a freedom-to-operate analysis on BRMU8400847Y1 to assess your product’s exposure
Run FTO in Eureka →Similar vibration damper and mechanical fixture patent cases in Brazil
Cases involving mechanical component utility model patents litigated before Brazilian state courts, particularly the Court of Justice of São Paulo, in the aluminium fixtures sector.
What this case signals for the Brazilian mechanical components IP landscape
A six-year infringement dispute over a niche vibration damper patent illustrates the endurance of individual inventor enforcement in Brazil.
Brazilian utility model patents can sustain multi-year enforcement campaigns
BRMU8400847Y1 is a Brazilian utility model — a faster-grant, shorter-term protection vehicle. This case demonstrates that even utility model holders can pursue infringement actions through multiple court stages over many years in Brazil. Companies in the aluminium fixtures and frames sector should not discount utility model risk in their IP clearance processes.
Procedural motions in São Paulo courts can extend case timelines significantly
The terminal event here — rejection of a clarification motion — suggests the parties were still engaged in procedural skirmishing years after the original filing. Litigation teams operating in Brazilian state courts should build extended timeline assumptions into budget and strategy planning, particularly where individual inventors are involved as claimants.
BIANCHI v ALUSHOP — key questions answered
The case was closed on 11 December 2024 when the Court of Justice of São Paulo rejected a motion for clarification of statement, with the basis of termination recorded as appeal dismissed. This is a procedural closure — the public record does not disclose the substantive infringement finding on patent BRMU8400847Y1.
BRMU8400847Y1 is a Brazilian utility model patent held by individual inventor Enio Bianchi. It protects an arrangement for a vibration damper for a device for opening gaps, a mechanical assembly relevant to aluminium-framed doors, windows, or similar gap-opening fixtures. The ‘MU84’ prefix suggests a utility model filed around 2004.
In Brazilian civil procedure, embargos de declaração (clarification motions) allow a party to ask the court to clarify, correct, or fill gaps in an earlier ruling. When the court rejects such a motion, as here, it confirms that the prior decision contained no ambiguity or omission warranting correction. The rejection is procedural and does not constitute a new substantive ruling on the merits of the patent infringement claim.
The case number contains ‘2018’, consistent with a filing year of 2018, and the case closed on 11 December 2024 — suggesting a litigation duration of approximately six years. This is consistent with complex multi-stage proceedings in Brazilian state courts, particularly where appellate and clarification procedures extend the timeline beyond initial trial.
Companies selling or importing vibration damper arrangements for gap-opening devices in Brazil should assess BRMU8400847Y1’s claim scope and remaining term. Brazilian utility models receive 15-year protection from filing, so a circa-2004 filing date would suggest the patent may be at or near expiry. However, the active enforcement history and undisclosed merits outcome create residual uncertainty that warrants a targeted FTO review before market entry or product changes.
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