[Direct answer]In the Beijing area, reverse engineering a product after legally obtaining it does not constitute infringement. If a person disassembles, maps, and analyzes a product purchased from the open market to reconstruct its technical solution, this falls under the category of self-developed research and development, and the law explicitly does not consider it an infringement of trade secrets—this is also the core difference between trade secrets and patents: patents are disclosed in exchange for protection, while trade secrets rely on self-protection and lose their exclusivity if they are legally decoded by others. There are three exceptions: if the product is stolen, rented, or borrowed; if the disassembly violates contractual agreements or industry rules; or if the product is obtained through improper means and then "reverse engineered" to whitewash its origins, it will not be protected.

1. Problem background and typical scenarios

Device manufacturers disassemble the structures of competitors' products, software companies decompile and benchmark their counterparts, and materials companies analyze formulas—reverse engineering is an unspoken practice in the technology industry. The pain point for holders of technological secrets is that once the secrets are legally disassembled and cracked, they cease to be secrets, and the decoders do not need to bear any responsibility for it.

II. Key points of contention

First, the prerequisites for the legality of reverse engineering: the product's source and the right to disassemble it. Second, why "whitewashing-style reverse engineering" is not recognized. Third, the effectiveness of contractual provisions prohibiting disassembly. Fourth, the rights holder's defensive strategies and evidence collection.

III. Professional analysis by Henglue Lawyers

The first layer, the legal prerequisite: The judicial interpretation of the Supreme People's Court on infringement of trade secrets clearly states that obtaining the alleged infringing information through self-developed research or reverse engineering does not constitute infringement of trade secrets. Reverse engineering requires disassembling, mapping, and analyzing the technical information obtained from products obtained from public channels, and the product sources must be legal: products purchased in the market or obtained through normal commercial channels can be disassembled; products borrowed, rented, or stolen, or obtained through improper means and then disassembled, do not constitute legitimate reverse engineering. The claimant must provide evidence of the product's source (purchase invoices, channel records). The second layer, exclusion of whitewashing pathways: If technical information is obtained through improper means such as bribery, fraud, or electronic intrusion, and then claimed to have been "obtained through reverse engineering," the court will not accept it. The determination of improper means will not change due to subsequent packaging. At the same time, the success of reverse engineering must be supported by evidence: R&D records, disassembly notes, test data, and timelines of the process draft. The party claiming reverse engineering must prove that the technical solution was disassembled by themselves rather than stolen. The third layer, non-disassembly agreements and industry rules: If a contract explicitly prohibits disassembly or testing, violating the agreement may constitute breach of contract or infringement (such as restrictions in equipment leasing contracts or test sample agreements). For detachable technologies (software, formulas) attached to products, attempting to explain the source as "reverse engineering" will be exposed - formula-based trade secrets are the most difficult to reverse engineer, which is why they are favored by rights holders. The fourth layer, defenders' strategies: 1. Hierarchical information management - core formulas and process parameters are not included in disassembleable end products. What can be disassembled is given to competitors, and what cannot be disassembled is the moat. 2. Technological confidentiality measures - source code encryption, traceable sample numbers, and supplier fragmented supply ensure that neither party can obtain the full picture. 3. Detecting suspicious reverse engineering signs and tracing back to the product source (if the other party cannot access legitimate products, reverse engineering collapses on its own). 4. Combined layout of patents and trade secrets - consider patent protection for disassembleable mechanical structures (since they cannot be hidden anyway), and use trade secrets for process formulas. Beijing is a hub for high-precision and cutting-edge industries, and disputes over trade secrets and reverse engineering often occur in equipment manufacturing and software industries. It is far more effective for enterprises to conduct technical zoning based on "disassembleability and confidentiality" than to pursue accountability after the fact.

IV. Practical Suggestions and Legal Basis

The first step is zoning layout: Protective measures are divided according to the degree of disassemblability. Those that can be disassembled are subject to patent protection, while those that cannot be disassembled are subject to trade secret protection. The second step is controlling the source: Disassembly restrictions clauses are included in transaction and lease contracts. The third step is leaving traces: The party claiming reverse engineering must preserve evidence of the disassembly process, and the right holder must preserve evidence of the process of forming the trade secret. The fourth step is obtaining evidence quickly: Suspected infringements are fixed from two aspects: the product source and the contact channels. Main legal basis: Article 9 of the Anti-Unfair Competition Law of the People's Republic of China, Article 14 of the Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trials of Civil Cases Involving Infringements of Trade Secrets; the specific application shall be subject to the currently effective provisions.

5. Henglue Law Firm's Reminder

The three principles of reverse engineering: Products purchased legally can be disassembled, and the technology obtained through disassembly does not constitute infringement; stolen technology is first used and then whitewashed, which is not recognized by the court; the Achilles' heel of trade secrets lies in their disassemblability, and the partitioned layout is more valuable than litigation for accountability. For disputes involving trade secret protection and reverse engineering, you can seek assistance through legal channels.Intellectual property protection and corporate lawWe can provide a comprehensive solution for the service, which includes technical cooperation and the design of confidentiality clauses that can be combined togetherBusiness and contract disputes in enterprisesFor reference, you can refer to the section on the construction of the trade secret systemSpecialised legal servicesFor reference, you can check the section related to claim executionCreditor's rights and debts, and enforcement cases板块。

VI. Frequently Asked Questions

Q1: Is it illegal to disassemble competitors' products to study their technology?

Legally purchased competing products can be disassembled and analyzed, and the technical solutions obtained from this process do not infringe on the other party's trade secrets.

Q2: Is it valid to prohibit disassembly in the contract?

It is effective. Those who disassemble the equipment in violation of the agreement will be held accountable for breach of contract or infringement of rights. The restrictions on the test prototypes and leased equipment are even stricter.

Q3: Who bears the burden of proof for the success of reverse engineering?

The party advocating reverse engineering shall provide complete evidence of the product's source and the disassembly and R&D process.

Q4: Can formula-based technical secrets be reverse-engineered?

It's basically impossible. Although the ingredients can be tested, it's difficult to reconstruct the process parameters and the path of the formulation, making it the most suitable object for protecting technical secrets.

Q5: Can you still protect your rights if your product has been reverse-engineered?

If the decryption process is illegal (the source is unauthorized and violates agreements), you can seek legal protection; however, there is no remedy for purely legal decryption.

The above answer is based on the judicial practice in Beijing. The judicial interpretations in other provinces and cities may vary. For specific cases, please refer to the local rules and evidence situation.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the evidence materials, so as to avoid missing the statutory time limit. →Intellectual property protection legal services·Beijing Henglu Law Firm

Disclaimer: This article is compiled based on current laws and regulations and publicly available adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. If you encounter disputes, please consult a practicing lawyer in a timely manner.