Restore 6 ASINs in 1 week! Can this "golden appeal material" greatly increase the success rate of appeal?

In today's cross-border e-commerce competition, patent infringement has become a "big headache" for many sellers. Especially when your product is removed from the shelves due to the platform's misjudgment even though it is not infringing, the helplessness and anxiety are simply overwhelming. What's even more frustrating is that many sellers submitted appeal materials as required by the platform, but repeatedly received the result of failed appeals, and they didn't even know the specific reasons, falling into an endless appeal cycle.

The answer is: a letter of non-infringement issued by a professional intellectual property lawyer . This is the "golden complaint material" recognized by the Amazon platform. It is issued by a professional intellectual property lawyer and can thoroughly prove that your product does not infringe from a legal and technical perspective, helping you quickly restore links and get back on track with sales.

Many sellers tend to fall into these traps when filing complaints:

• Unprofessional materials: The complaint materials prepared by oneself lack legal effect and are not recognized by the platform.

• The technical comparison is not clear: there is no analysis of each patent claim, and the technical differences cannot be proved.

• The chain of evidence is incomplete: lack of evidence such as the earliest sales records, making it impossible to prove that the product predates the other party’s patent.

• Insufficient legal basis: No relevant legal provisions were cited, and the grounds for appeal seemed weak.

A professional patent non-infringement opinion is designed to solve these problems. It is not only a legal document, but also a technical analysis report that can defeat infringement allegations from multiple dimensions.

The three core values ​​of patent non-infringement legal opinions

1. Legal endorsement: Signed by a practicing lawyer, highly credible on the platform.
2. Technical demonstration: Through patent claim comparison (Claim Chart), the technical differences between the product and the patent are clearly demonstrated.

3. Complete chain of evidence: covering R&D records, design drawings, supply chain vouchers, etc., forming a complete chain of evidence.

Five core contents of patent non-infringement opinion

1. Technical feature comparison

   Analyze the claims of the patent involved one by one to clarify the technical scope of its protection.

   Compare the product's technical features with the patent claims in detail to identify similarities and differences.

   The differences between products and patented technologies are intuitively demonstrated through a combination of pictures and texts.

2. Factual evidence

   Provide a comparison chart of the product and patented technology, clearly marking the key differences.

   Submit supply chain related documents (such as purchase contracts, invoices, etc.) to prove the legal source of the product.

3. Legal Analysis

   In combination with the relevant provisions of the Patent Law, the legal basis for the product not constituting infringement is explained.

   If necessary, analyze the validity of the patent and assess whether the other party’s patent can be invalidated.

   Refer to the verdicts of similar cases to enhance the persuasiveness of your argument.

4. Prior Use Defense

   If the product has been manufactured, used or sold before the date of patent application, the right of prior use can be claimed.

   Provide evidence such as production records, sales orders, product disclosures, etc. to prove that the product has entered the market before the patent priority date.

5. Proof of authorization (if applicable)

   If a patent license has been obtained, it is necessary to provide documents such as the authorization agreement and royalty payment receipt to prove the legality of use.

Actual case: 6 ASINs were restored in one week and sales returned to their peak

Case Background

In January 2025, Zhang's six popular ASINs on Amazon Europe were removed from the shelves due to suspected patent infringement, with an average daily loss of more than $10,000. Zhang immediately checked the situation and found that Amazon only accepted one of the following three methods:

• A court order indicating that you are permitted to sell the products and have not violated Amazon’s policies for each listing mentioned in the suspension notice.

• A lawyer's letter stating that there is no infringement.

• Communicate with the rights holder and reach an agreement, and the rights holder will notify the platform to withdraw the complaint.

After in-depth research and careful analysis, Zhang decided to file a complaint using a certificate of non-infringement. In order to better promote this plan, he began to actively look for professional service agencies to provide support. Through the recommendation of his seller friend, Zhang contacted Youfu Overseas. After repeated communication and comprehensive consideration, Zhang finally decided to entrust Youfu Overseas to jointly meet this challenge.

First, Youfu Overseas Lawyers will conduct a preliminary analysis of the claims of the patents involved, evaluate the degree of infringement of the product and the feasibility of the report, and immediately collect relevant evidence, including product photos, usage videos and sales records, to ensure that the materials are detailed and sufficient. On this basis, the lawyers will conduct a technical comparison, analyze the differences in technical features one by one, and write a professional technical analysis report to demonstrate the reasons for non-infringement.

The lawyer suggested the following:

The translation is as follows:

After completing the above work, the lawyer issued a complete legal opinion on non-infringement, which included a complete chain of evidence, legal basis and technical analysis conclusions, and attached a complaint letter for the client's confirmation according to the client's needs. After full communication and confirmation by both parties, the lawyer formally signed the legal opinion.

The seller submitted relevant materials to the platform to file a complaint, and eventually the 6 ASIN links were successfully restored within ten days , the infringement record was revoked, and the account health status was restored.

It should be noted that Amazon may conduct a telephone verification of each "Legal Opinion on Non-Infringement" submitted, and contact the lawyer who issued the opinion to confirm the authenticity and accuracy of the non-infringement statement. When receiving the review call from Amazon, the Youfu Overseas Lawyer Team, with its rich experience in intellectual property practice and deep legal expertise, can provide professional and persuasive responses, thereby significantly improving the approval rate of sellers' complaints.

Three intellectual property suggestions that cross-border sellers must know

• Plan ahead: Conduct a comprehensive investigation before the product is put on the shelves to confirm whether the supplier owns the intellectual property rights of the corresponding product to avoid infringement risks.
• Preserve evidence: Properly preserve creative research and development, sales records, supplier authorization evidence and other information in case of emergency.

• Professional support: When encountering infringement issues, seek help from a professional team in a timely manner to avoid blind complaints.