M. A. Rossini Lopes v. Andre Lopes: Drilling Rig Patent Appeal Granted
M. A. Rossini Lopes Me brought a declaratory judgement action before the Court of Justice of São Paulo involving patent BRMU1326729U2, covering the HSL 520 and HSL 620 drilling rigs. The lower court extinguished the lawsuit, but the appellate chamber reversed that extinction, ordering the case to proceed on the merits.
São Paulo court revives extinguished drilling rig patent action
M. A. Rossini Lopes Me, a Brazilian entity, initiated a declaratory judgement action — Case No. 1005121-04.2022.8.26.0363 — before the Court of Justice of São Paulo against Andre Lopes. The dispute centres on patent BRMU1326729U2 and its relationship to two commercial drilling rigs: the HSL 520 and the HSL 620. The precise filing date is not available in the public record, but the appellate decision was issued on 29 October 2024.
The court of first instance extinguished the lawsuit procedurally, without reaching the substantive merits of the declaratory judgement claim. M. A. Rossini Lopes Me appealed that extinction, and the appellate chamber of the Court of Justice of São Paulo granted the appeal. The judgment of extinction was annulled, and the case was returned to the court of origin for regular procedural progress — meaning the merits of the declaratory claim remain fully unresolved.
The outcome is procedural rather than substantive: no finding has been made on the validity, ownership, or infringement of BRMU1326729U2. The appellate panel’s decision suggests the lower court’s grounds for extinction were legally insufficient. What drove the original extinction — whether a standing defect, procedural irregularity, or another bar — is not specified in the available public record, leaving the ultimate commercial and IP outcome of this dispute open.
Filing to Appeal Granted in 0 days
Case closed 29 October 2024; filing date not available in the public record
Appeal granted: extinction annulled, case proceeds to merits
What ‘appeal granted’ means in Brazilian civil procedure
When a Brazilian appellate court grants an appeal against a judgment of extinction, it annuls the lower court’s decision to close the proceedings without examining the merits. The case is remanded to the court of origin with instructions to allow the action to proceed normally. No finding on the underlying patent claim has been made at this stage — the ruling is purely procedural.
Procedural remandRossini Lopes recovers its day in court on the merits
For M. A. Rossini Lopes Me, the appellate ruling is a procedural win: the avenue to litigate the declaratory judgement claim on its merits has been restored. The company may now advance its substantive arguments regarding patent BRMU1326729U2 and the HSL 520 and HSL 620 drilling rigs before the court of origin. Whether this translates into a substantive victory depends entirely on future proceedings.
Merits access restoredAndre Lopes must now defend the claim on its substance
The appellate ruling removes the procedural shield that extinguished the action at first instance. Andre Lopes will now need to engage with the substantive declaratory judgement claims relating to BRMU1326729U2 before the originating court. The merits phase introduces new factual and legal exposure around the drilling rig patent that the earlier extinction had forestalled.
Substantive risk now liveUncertainty over HSL drilling rig patent rights continues
Until the merits of the declaratory judgement are resolved, the scope and enforceability of BRMU1326729U2 as it relates to the HSL 520 and HSL 620 drilling rigs remains commercially uncertain. Manufacturers, distributors, or licensees operating in the Brazilian drilling equipment market with exposure to HSL-series products should monitor the progress of proceedings at the court of origin.
IP status unresolvedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | M. A. Rossini Lopes Me | Individual | Brazilian entity asserting patent BRMU1326729U2 over HSL-series drilling rigsSearch in Eureka ↗ |
| Defendant | Andre Lopes | Individual | Individual respondent named in the drilling rig patent declaratory actionSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Justice of Sao PauloSearch in Eureka ↗ |
Official order — verbatim text
The appellate panel’s ruling — granting the appeal and annulling the lower court’s judgment of extinction — reflects a finding that the procedural basis on which the first-instance court closed the proceedings was legally untenable. The court ordered ‘regular progress of the action at the origin,’ which confirms that no merits adjudication has occurred. The substantive declaratory judgement claims concerning BRMU1326729U2 and the HSL drilling rigs remain entirely open and will now be examined at first instance.
BRMU1326729U2 — HSL 520 and HSL 620 drilling rig utility model
BRMU1326729U2 is a Brazilian utility model patent — designated by the ‘MU’ prefix in the INPI numbering system — covering the HSL 520 and HSL 620 drilling rigs. Utility models in Brazil protect functional improvements to existing tools or objects and carry a protection term of up to 15 years from filing. The patent’s specific technical claims relating to the drilling rig configuration are not publicly detailed in the case record, but the involvement of two distinct rig models suggests the scope may extend to a product family rather than a single configuration.
For the Brazilian drilling equipment market, BRMU1326729U2 represents a potential barrier to competitors manufacturing or commercialising equipment in the HSL class. Utility model patents in Brazil are not subject to the same substantive examination rigour as invention patents, which can make their enforceability in litigation contested. The declaratory judgement framing of this dispute suggests that the scope or ownership of the patent — rather than straightforward infringement — is likely the central issue, which has strategic implications for how the merits phase will unfold.
Should you run an FTO against BRMU1326729U2?
Any company developing, manufacturing, importing, or distributing drilling rigs in Brazil — particularly equipment functionally comparable to the HSL 520 or HSL 620 — should treat BRMU1326729U2 as an active risk until the merits of this case are resolved. The appellate reinstatement of the action means the patent’s enforceability is under active judicial scrutiny, and a merits-phase outcome could clarify or expand its commercial reach.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map the claim scope of BRMU1326729U2 against their own product specifications, identify prior art that may bear on the utility model’s validity, and monitor litigation developments in real time. Running a targeted FTO now — before the first-instance merits hearing — provides the clearest window for strategic response.
Run a freedom-to-operate analysis on BRMU1326729U2 to assess your product’s exposure
Run FTO in Eureka →Similar drilling equipment patent cases in Brazilian courts
Explore comparable utility model patent disputes involving mechanical drilling equipment before the Court of Justice of São Paulo and INPI proceedings.
What this case signals for drilling equipment IP in Brazil
A procedural reversal before the Court of Justice of São Paulo keeps patent BRMU1326729U2 alive and commercially significant.
Procedural extinctions in Brazil are not necessarily final
This case illustrates that a first-instance extinction of a patent action in Brazil can be successfully challenged on appeal. IP rights holders whose cases are dismissed on procedural grounds should evaluate appellate options before treating the matter as closed.
Declaratory judgement actions are a key IP tool in Brazil
The use of a declaratory judgement vehicle in this case is consistent with Brazilian practice for resolving patent ownership and scope disputes. Companies operating in the drilling equipment sector should understand how such actions interact with utility model patents like BRMU1326729U2.
Me v Andre — key questions answered
The Court of Justice of São Paulo granted the appeal filed by M. A. Rossini Lopes Me, annulling the lower court’s judgment of extinction and ordering the action to proceed on its merits at the court of origin. No substantive ruling on patent BRMU1326729U2 has been made.
BRMU1326729U2 is a Brazilian utility model patent asserted by M. A. Rossini Lopes Me. It is associated with the HSL 520 and HSL 620 drilling rigs. The ‘MU’ designation indicates it is a utility model under Brazilian INPI classification rather than a standard invention patent.
An extinction of the lawsuit at first instance in Brazil means the court closed the proceedings on procedural grounds without examining the merits of the declaratory judgement claim. The appellate court found this extinction was not legally justified and reversed it, restoring the case for substantive consideration.
In Brazilian civil procedure, a declaratory judgement action (ação declaratória) seeks a court ruling that clarifies or establishes the existence, scope, or non-existence of a legal right — here, likely relating to the ownership or scope of patent BRMU1326729U2. It is a common vehicle for resolving patent disputes without necessarily asserting infringement as the primary claim.
No. The appeal granted ruling is a procedural outcome only. It restores the right of M. A. Rossini Lopes Me to have the declaratory judgement claim heard on its merits. The substantive question of patent rights over the HSL 520 and HSL 620 drilling rigs under BRMU1326729U2 remains entirely unresolved and will be adjudicated at the court of origin.
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