"Post Sales": How to Prove Trademark Infringement in the Past?

sold

By Cher Yang

In administrative enforcement actions involving the sale of goods that infringe registered trademark rights, one practical issue frequently arises but is not always carefully examined: how to determine whether the goods already sold by the party involved constitute infringement. 

In China’s trademark administrative enforcement system, the amount of illegal business turnover (违法经营额) is one of the most important factors influencing the severity of administrative penalties. In some situations, it may even affect whether the conduct crosses the threshold into criminal liability. While, whether the sales amount of sold goods can be included in the illegal business turnover depends first on the characterization of the sold goods.

In practice, enforcement authorities often seize allegedly infringing goods at the inspection site. These goods are typically identified by the trademark owner as counterfeit or otherwise infringing, and their value is then counted toward the illegal turnover. However, the situation becomes more complicated when the seller’s accounting records or sales data show that similar goods have already been sold. Those sold items are no longer physically available for inspection, and they are rarely examined individually by the trademark owner. 

The question therefore arises: can enforcement authorities simply assume that the previously sold goods were also infringing?

The answer under Chinese administrative law is more nuanced than a simple presumption.

1

The Importance of Establishing Facts 

in Administrative Penalties

Chinese Administrative Law imposes relatively high requirements on the determination of facts in administrative penalty cases. Article 40 of the Administrative Penalty Law clearly stipulates that an administrative organ must clarify the illegal facts before making a decision on an administrative penalty; if the illegal facts are unclear or the evidence is insufficient, the administrative penalty shall not be imposed.


 

This principle implies that law enforcement authorities cannot simply and mechanically include the entire amount from sales records directly into the illegal business turnover. If a penalty decision counts the sales value of previously sold products without identifying evidence that those goods were infringing, the case may be considered factually incomplete, requiring further investigation. 

This approach reflects an important distinction between administrative enforcement and civil litigation. In civil cases, courts sometimes rely on a standard of “high probability” or the preponderance of evidence, meaning a fact may be accepted if it is more likely than not to be true. Administrative enforcement, by contrast, generally demands clearer factual verification, because administrative penalties are imposed by public authorities exercising state power. As a result, assumptions that might be acceptable in civil litigation cannot automatically be applied in administrative penalty cases. 

2

Why On-Site Infringing Goods do not Automatically Prove Earlier Sales Were Infringing


 


At first glance, it may seem logical that if infringing goods are found at the premises of a seller, earlier sales of the same products must also have been infringing. However, this inference is not always legally sound.
 

First, the existence of infringing goods discovered during an inspection does not necessarily prove that all goods previously sold by the seller were identical in nature or source. Without direct evidence relating to the sold items themselves, the link between the seized goods and the sold goods may remain speculative.

 

Second, Chinese trademark administrative practice typically requires that the trademark owner identify specific goods as infringing. In enforcement operations, rights holders are often asked to examine seized products individually and confirm whether they are genuine or counterfeit. Authorities generally do not rely on sampling methods to determine infringement for an entire batch of goods. If the determination for seized goods requires individual identification, it would be inconsistent to treat all previously sold goods as infringing solely by analogy.

 

Finally, relying on such assumptions could undermine evidentiary reliability in enforcement decisions. Administrative penalties must be supported by evidence that demonstrates a clear connection between the alleged violation and the specific goods involved.

3

Establishing Infringement Through Evidence and Reasonable Inference

Although enforcement authorities cannot automatically presume that sold goods were infringing, this does not mean that such goods can never be included in the calculation of illegal turnover. In many cases, infringement may still be established through evidence combined with reasonable inference.

Chinese trademark enforcement rules allow authorities to rely not only on direct evidence but also on logical conclusions drawn from known facts and common commercial experience. When the available evidence concerning the sold goods strongly indicates that they were part of the same infringing activity as the seized goods, a finding of infringement may still be justified.

One of the most significant forms of evidence in this context is the statement of the party involved. If a seller acknowledges that previously sold goods were counterfeit or otherwise infringing, such admissions can constitute important evidence. Even when a party later retracts the statement, enforcement authorities may still rely on it if the party cannot produce convincing contrary evidence.

Beyond statements, authorities often examine the broader factual context surrounding the goods.

4

Pricing as an Indicator 

of Infringing Goods

The purchase price and selling price of goods often reflect their authenticity. Prices significantly lower than normal market levels, without a reasonable explanation, are typically important indicators that the goods may be counterfeit.

Chinese judicial interpretations concerning intellectual property crimes recognize this principle as well. Extremely low purchase prices, especially when inconsistent with normal commercial practices, can suggest that the seller knew or should have known the goods were infringing.

When sales records show such abnormal pricing patterns, authorities may reasonably infer that the goods involved were counterfeit.

5

Supply Channels

Another factor relates to the source of the goods. In legitimate commercial distribution systems, genuine branded products typically move through authorized or traceable supply chains. When goods originate from unlicensed workshops, counterfeit production sites, or undocumented suppliers that cannot provide normal transaction documentation, the likelihood of infringement increases significantly.

Chinese trademark enforcement guidelines consider procurement through such irregular channels as an indication that the seller cannot claim ignorance regarding infringement. If both the seized goods and the previously sold goods are shown to come from the same questionable source, authorities may reasonably conclude that the sold goods were also infringing.

6

Sales Channels

The context in which goods are sold may also be relevant. Commercial experience suggests that high-end or well-known branded goods are normally distributed through authorized retailers or formal sales channels. When products bearing famous trademarks appear in environments that are clearly inconsistent with their usual market positioning, such as informal street markets or small unregulated shops, this discrepancy can raise serious doubts about authenticity.

For example, luxury goods are rarely sold through temporary market stalls, and premium alcoholic beverages are unlikely to be distributed through small convenience shops with no official authorization. When the sales environment is clearly inconsistent with ordinary brand distribution practices, it may support a finding that the goods involved were not genuine.

7

Balancing Evidence and Fair Enforcement

Ultimately, determining whether previously sold goods were infringing requires a careful assessment of multiple factors rather than a single assumption. Enforcement authorities must balance the need to effectively combat counterfeit goods with the obligation to ensure that administrative penalties are supported by reliable evidence.

When sufficient evidence exists (such as admissions by the seller, irregular supply chains, abnormal pricing, or other indicators consistent with counterfeit trade) authorities may reasonably conclude that sold goods were infringing and include their value in the illegal turnover calculation. Conversely, when such evidence is absent, including those sales may risk undermining the factual basis of the penalty decision.


 

Conclusion

 

In trademark infringement enforcement involving the sale of counterfeit goods, determining the status of already sold products is a critical step that directly affects the calculation of illegal business turnover and the severity of penalties.

Chinese administrative practice emphasizes that infringement findings must be grounded in evidence rather than simple assumptions. The presence of infringing goods at the inspection site does not automatically prove that previously sold goods were also infringing. Instead, authorities must examine the available evidence and assess the circumstances using both legal standards and practical commercial experience.

This approach reflects a broader principle in administrative enforcement: protecting trademark rights must go hand in hand with maintaining evidentiary rigor and procedural fairness. By relying on a combination of factual evidence, logical inference, and commercial understanding, enforcement authorities can ensure that infringement determinations are both effective and legally sound.