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Short answer: Under the Court of Justice of the European Union’s 6 July 2010 ruling in Monsanto Technology LLC v Cefetra BV and Others (Case C-428/08), the mere presence of a patented DNA sequence in processed soy meal was not enough to invoke Article 9 of Directive 98/44/EC. The genetic information had to be performing the function for which it was patented in the material where it was found. Residual DNA in dead, processed soy meal could no longer make a living soybean resistant to glyphosate, so Monsanto could not use Article 9 to stop marketing that meal.
What the EU court decided
The judgment draws a functional boundary around biotechnology patent protection. A patented sequence is not automatically protected in every product that contains a physical copy of it. For Article 9 of the Biotechnology Directive, the sequence must actually perform the patented function in the relevant material.
In this case, the patented sequence was designed to make a soybean plant resistant to glyphosate when introduced into the plant’s DNA. The DNA detected in imported soy meal was a leftover from processing. Because the meal was no longer living soybean tissue, the sequence could not perform that resistance function there. Its detectable presence therefore did not, by itself, establish the Article 9 basis needed to prohibit marketing the meal.
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Case facts at a glance
| Issue | What the record established |
|---|---|
| Case | Monsanto Technology LLC v Cefetra BV and Others, Case C-428/08 |
| Judgment date | 6 July 2010 |
| Legal provision | Article 9 of Directive 98/44/EC on the legal protection of biotechnological inventions |
| Patented function | A DNA sequence that, when introduced into soybean DNA, made the plant resistant to glyphosate |
| Material at issue | Soy meal imported from Argentina into the Netherlands in 2005 and 2006 |
| Evidence of DNA | Tests arranged by Monsanto detected traces of DNA characteristic of the Roundup Ready (RR) soybean |
| Result under Article 9 | Residual DNA in processed soy meal no longer performed the patented function, so Article 9 could not be relied on to prohibit marketing the meal |
Why the DNA was in the soy meal
RR soybean was cultivated on a large scale in Argentina. The official account of the case states that Monsanto’s invention was not protected by a patent there. Companies later shipped soy meal made from that crop to the Netherlands. Processing left fragments or traces of the soybean’s DNA in the meal, and laboratory testing found the characteristic sequence.
Monsanto argued that the sequence’s presence was enough to trigger the protection granted by its European patent. The Dutch proceedings asked whether companies could market the meal when it contained that sequence, even though the meal was a processed commodity rather than a living plant. The question was sent to the CJEU because it required an interpretation of Article 9, an EU-law provision that determines how protection extends when genetic information is contained in biological material.
How Article 9 works in this context
Article 9 links the scope of protection to the behavior of the genetic information. In practical terms, the provision can extend protection to material containing a patented sequence, but the sequence must be doing the job described by the invention in that material. The rule is therefore different from a simple “copy found equals infringement” test.
The function in the patented invention
Monsanto’s sequence had a defined biological role: it enabled a living soybean plant to withstand glyphosate. That role depended on the sequence being integrated into the plant’s genetic system and expressed in a living organism. The Court treated that biological role, rather than the sequence’s chemical detectability, as the relevant benchmark.
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The function in the accused material
The relevant material was processed soy meal. Processing had killed and broken down the soybean tissue. The residual sequence could still be detected, but it could not operate as a genetic instruction that protected the meal against glyphosate. Because the patented function was absent in the material being marketed, the Article 9 condition was not met.
Presence is not the same as performance
The ruling separates two questions that are easy to conflate:
- Is the patented sequence physically present? Testing may answer yes, even when only residual fragments remain.
- Is the sequence performing the function for which it was patented? Article 9 requires this functional connection in the material concerned.
A positive DNA test therefore does not automatically answer the infringement question. The analysis must identify the patent’s claimed function, examine the material in which the sequence appears, and determine whether the sequence is active in that material in the relevant biological sense.
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Why processed soy meal was different from a living soybean
In a living soybean plant carrying the sequence, the invention could operate: the plant could express the trait that confers glyphosate resistance. In processed meal, the biological system required for that trait no longer existed. The sequence was residual matter from the earlier plant, not an operating genetic system in the meal.
This distinction explains why the Court did not treat the decision as a ruling that DNA patents are generally invalid or that DNA can never be protected. The patent’s function remained relevant; the problem was that the function was not being performed in the particular material that Monsanto wanted to control under Article 9.
The rejected future-function argument
Monsanto also faced the problem of hypothetical reuse. A DNA sequence might, in principle, be recovered and introduced into another plant. If that occurred, the sequence could potentially perform the patented function in the new organism. The Court held that this possibility was not enough to invoke Article 9 against the soy meal.
For protection to apply in relation to another plant, the sequence would have to be introduced into that plant and actually function there. A chain of speculative steps—recovering residual DNA, transferring it, integrating it, and obtaining expression—does not turn the original processed commodity into material in which the invention is currently operating.
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What the ruling means for imports and enforcement
Can a company stop an import simply because a patented sequence is detected?
Not on the Article 9 theory accepted by the Court in this case. Detection alone did not establish that the sequence was performing its patented function in the imported soy meal. The judgment therefore prevented Monsanto from relying on Article 9 to prohibit marketing this processed meal on the facts presented.
That answer is narrower than a general immunity for all imports containing DNA. A different product could present different facts: for example, a living organism, viable seed, a reproductive material, or a product in which the claimed biological activity remains operative. The patent claims, the material, the way the sequence functions, and the applicable national law all matter.
What importers should examine
- Identify exactly what the patent claims and state the claimed biological function in operational terms.
- Characterize the imported material: living plant, seed, cell, feed, food ingredient, extract, or processed residue.
- Determine whether the sequence is intact and expressed, or merely present as residual DNA.
- Ask whether the claimed function is actually occurring in that material, not whether it could occur after hypothetical laboratory manipulation.
- Check the jurisdiction and the current state of law before relying on the 2010 ruling in a new dispute.
What the judgment does not say
- It does not hold that all DNA patents are invalid.
- It does not say that DNA sequences lose every possible legal significance when they enter a processed product.
- It does not decide every dispute involving genetically modified crops, food, feed, or biological materials.
- It does not automatically control courts outside the European Union.
- It does not replace an analysis of the patent claims, the accused material, or other possible legal grounds.
The holding concerns Article 9 of Directive 98/44/EC and the specific factual setting of residual DNA in processed soy meal. Later disputes may involve different statutory language, amended law, different claims, or materials in which a sequence remains functional.
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When a patented sequence is found in a product, the following sequence of questions keeps the analysis tied to the Court’s reasoning:
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- Define the invention. Write down what the patented sequence is supposed to do. In Monsanto’s patent, the relevant function was glyphosate resistance in a soybean plant.
- Identify the material. Determine whether the accused item is a living organism or a processed material such as meal.
- Locate the sequence’s biological setting. Is it integrated into a functioning genome and expressed, or is it a leftover fragment detectable by testing?
- Test present function. Ask whether the sequence performs the patented function in the material as marketed.
- Exclude speculation. Do not treat a possible future transfer into another organism as present performance.
- Apply the correct law. Article 9 is an EU biotechnology-patent rule; national courts still assess the patent claims and any other relevant causes of action.
Why the case remains important
The decision supplies a practical limit on biotechnology patents that depend on genetic function. Without that limit, a patent holder could argue that any commodity containing a detectable copy of a sequence—however degraded or biologically inactive—was automatically covered. The Court instead required a connection between the patented invention and the material being controlled.
That approach also gives businesses a clearer way to distinguish living genetically engineered material from downstream products. A trait expressed in a living crop is not legally identical, for Article 9 purposes, to residual DNA left in meal after processing. The distinction is factual and functional, not merely a question of whether a laboratory can find the sequence.
Limits of relying on the 2010 judgment
The judgment should be used as an interpretation of Article 9 in its own setting, not as a universal answer to every modern biotechnology dispute. A current matter may involve different patent wording, another type of genetic material, a product capable of reproduction, or legislation and case law that developed after 2010. Companies facing an enforcement threat should compare the specific claims and evidence with the facts addressed by the CJEU rather than assuming that a DNA test or the absence of one decides the case.
For readers seeking the core rule, the safest formulation is precise: under Monsanto Technology LLC v Cefetra BV and Others, residual patented DNA in processed soy meal did not activate Article 9 because it no longer performed the function for which the sequence was patented.
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