BASF v. Syngenta: Pest Control Patent Appeal Partially Dismissed in São Paulo
BASF S/A brought an infringement action against Syngenta Proteção de Cultivos Ltda over Brazilian patent BR112018015328B1, which covers methods for controlling Pentatomidae and Miridae pests in plants using proprietary compound formulas. The Court of Justice of São Paulo partially dismissed the interlocutory appeal on 22 April 2025, leaving the underlying infringement dispute unresolved on the merits.
São Paulo appellate court partially dismisses BASF’s interlocutory challenge against Syngenta
BASF S/A, the Brazilian subsidiary of the global agrochemical group, initiated an infringement action against Syngenta Proteção de Cultivos Ltda before the Court of Justice of São Paulo. The dispute centres on Brazilian patent BR112018015328B1, which protects methods for controlling agricultural pests — specifically those belonging to the Pentatomidae and Miridae families — through the use of one or more compounds of a defined Formula I structure. These pest families are economically significant in Brazilian soybean and cotton cultivation, making the patent commercially material for both parties.
The proceeding before the appellate court involved an interlocutory appeal rather than a final merits determination. The court’s ruling, dated 22 April 2025, states that the appeal was ‘partially heard and, in the known part, it is dismissed.’ This language is consistent with a Brazilian appellate panel accepting jurisdiction over part of the appeal while rejecting it procedurally or substantively in the portion that was considered — without issuing a full merits adjudication on the underlying infringement claim. The core patent dispute therefore likely remains pending at the trial level.
The absence of a filing date in the public record limits precise duration analysis, though the closed date of 22 April 2025 anchors the appellate phase. The partial dismissal suggests procedural complexity — possibly disputed admissibility of parts of the interlocutory challenge — rather than a clean outcome for either side. The public record does not disclose which specific relief was sought via the interlocutory appeal, what interim measures (if any) were in place, or the current status of the first-instance proceedings.
Filing to Appeal Dismissed in Part in 0 days
Case closed 22 April 2025; filing date not available in public record
Interlocutory appeal partially dismissed: what this means for both parties
What ‘partially dismissed’ means in Brazilian appellate procedure
In Brazilian civil procedure, an interlocutory appeal (agravo de instrumento) challenges interim rulings before a final judgment. A partial dismissal indicates the appellate panel accepted jurisdiction over only part of the challenge — likely because certain grounds were inadmissible or failed to meet procedural thresholds. The dismissed portion receives no appellate relief, while any admitted portion may still be under consideration or was separately resolved.
Procedural — no merits rulingBASF’s interlocutory relief partially denied at appellate level
The dismissal of the known part of the appeal suggests BASF did not obtain the interim appellate relief it sought — at least not in full. This is not a final ruling on patent validity or infringement. BASF retains its rights under BR112018015328B1 and the underlying infringement action is likely to continue at first instance. The partial nature of the outcome leaves open the possibility that some aspect of the appeal was admitted and may yet produce a result.
Interim relief denied in partSyngenta benefits from dismissal but faces continuing infringement exposure
Syngenta secures a favourable procedural result: the interlocutory appeal against it was dismissed in the part considered by the court. However, this does not resolve the underlying infringement claim. If the first-instance proceeding continues, Syngenta must still defend against allegations that its pest control activities infringe BASF’s Formula I compound methods. The dismissed appeal may suggest a trial court ruling that was not successfully challenged at this stage.
Procedural win, merits unresolvedBrazilian agri-patent enforcement: interim appeals as a strategic tool
This case illustrates the role of interlocutory appeals in Brazilian patent enforcement — parties regularly use agravo de instrumento to challenge interim injunctions or evidentiary rulings during infringement proceedings. For agrochemical companies operating in Brazil’s highly competitive crop protection market, the ability to secure or resist interim relief can have immediate commercial consequences, particularly during key planting seasons. The partial dismissal here suggests courts are applying strict admissibility filters to such appeals.
Brazilian agri-patent strategyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | BASF S/A | Individual | Global agrochemical company — holder of BR112018015328B1 covering pest control methodsSearch in Eureka ↗ |
| Defendant | SYNGENTA PROTEÇÃO DE CULTIVOS LTDA | Individual | Brazilian subsidiary of Syngenta Group; major agrochemical and crop protection companySearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Justice of Sao PauloSearch in Eureka ↗ |
Official order — verbatim text
The court’s formulation — ‘the interlocutory appeal is partially heard and, in the known part, it is dismissed’ — reflects Brazilian appellate practice where a panel may bifurcate an appeal into admissible and inadmissible portions. The ‘known part’ language typically refers to the grounds the court accepted for review; dismissal of those grounds suggests they failed on their own terms rather than being procedurally barred. This outcome does not adjudicate patent validity or infringement, and the first-instance proceedings are likely ongoing.
BR112018015328B1 — Pest Control Methods for Pentatomidae and Miridae
BR112018015328B1 entered the Brazilian national phase via a PCT filing, as indicated by the BR112018 numbering convention. The patent covers methods for controlling pests — specifically targeting insects of the Pentatomidae family (stink bugs, including the highly destructive Euschistus and Nezara species) and the Miridae family (plant bugs) — using one or more compounds defined by a Formula I structure. Method claims of this type protect the use of chemical compounds in a specific application context, distinct from composition-only patents.
For the Brazilian agricultural sector, this patent is commercially significant. Soybean production in Brazil loses billions of dollars annually to stink bug damage, and effective control methods command premium market positioning. A method patent covering Formula I compounds gives BASF the ability to exclude competitors from offering functionally equivalent pest control solutions using the same chemical approach, even if the competitor’s active ingredient has a different name or formulation. The strength of such claims turns on the breadth of Formula I and the scope of ‘control’ as construed under Brazilian patent law.
Should you run an FTO against BR112018015328B1?
Any agrochemical company — or generic crop protection manufacturer — developing or commercialising insecticides targeting Pentatomidae or Miridae pests in Brazil should treat BR112018015328B1 as a mandatory FTO checkpoint. The patent’s method claim structure means infringement risk does not require identical compound identity: if your product is used in a method that falls within the Formula I definition and targets these pest families, you may be within scope. This risk is heightened for products launched for soybean or cotton markets in Brazil, Argentina, or other jurisdictions where PCT family members may be validated.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map the full claim scope of BR112018015328B1, identify related family members across PCT jurisdictions, and compare your candidate compound structures against the Formula I definition using AI-assisted claim parsing. Eureka also surfaces litigation history across the patent family, helping you assess enforcement likelihood and identify design-around opportunities before product registration — reducing both legal exposure and time-to-market risk.
Run a freedom-to-operate analysis on BR112018015328B1 to assess your product’s exposure
Run FTO in Eureka →Similar patent infringement cases in Brazilian agrochemical pest control
Explore related infringement actions involving agrochemical method patents before Brazilian state and federal courts, including TJSP proceedings involving crop protection compounds.
What this case signals for the Brazilian agrochemical IP landscape
BASF v. Syngenta in São Paulo highlights enforcement complexity around method patents in Brazil’s critical crop protection sector.
Method patents for pest control face a multi-stage litigation path in Brazil
This case confirms that Brazilian patent enforcement — particularly for method claims covering agricultural inputs — typically proceeds through multiple appellate layers before merits resolution. Interlocutory challenges can delay or modify interim relief without resolving the core infringement question. IP teams at agrochemical companies should plan for extended timelines in Brazilian enforcement campaigns.
Pentatomidae/Miridae pest control is a high-value patent battleground in Brazilian agri
Stink bugs (Pentatomidae) and plant bugs (Miridae) are among the most damaging pest groups in Brazilian soybean and cotton production. Patents covering control methods for these families carry significant commercial value. Competitors launching products in these segments should conduct thorough FTO analysis against the BR112018015328B1 claim set and its family members before market entry.
S/A v SYNGENTA — key questions answered
The Court of Justice of São Paulo partially dismissed the interlocutory appeal on 22 April 2025. The court heard the appeal in part and dismissed the known (admissible) portion without issuing a merits ruling on patent infringement. The underlying infringement action concerning BR112018015328B1 is likely still pending at first instance.
BR112018015328B1 protects methods for controlling pests in plants, specifically targeting insects of the Pentatomidae and Miridae families, using one or more compounds of a defined Formula I structure. It entered Brazil via PCT national phase, as indicated by the BR112018 prefix. The patent is held by BASF and was the subject of an infringement action against Syngenta.
In Brazilian civil procedure, an agravo de instrumento is an interlocutory appeal challenging an interim ruling made during first-instance proceedings — such as a decision on injunctive relief or evidence. It does not resolve the merits of the case. Courts may partially admit such appeals, reviewing only the grounds that meet admissibility requirements, which is consistent with the partial dismissal issued in this BASF v. Syngenta proceeding.
No. The partial dismissal applies only to the interlocutory appeal and does not constitute a final judgment on patent infringement or validity. Syngenta secured a favourable procedural result at the appellate stage, but the underlying infringement claim brought by BASF over BR112018015328B1 is likely still being adjudicated at the first-instance level.
Companies developing or selling insecticides targeting Pentatomidae or Miridae pests in Brazil should assess freedom to operate against BR112018015328B1. The patent’s method claim structure means that products using Formula I-type compounds in these pest control applications may infringe, regardless of brand name or exact formulation. PCT family members may also be enforceable in other Latin American markets. An FTO search is advisable before product registration.
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