Let me start by sharing a real case. In 2022, a tech company in Shenzhen's Nanshan District that specialized in AI chip algorithms—whose founder, Mr. Zhang, came to us looking completely dazed—had its core source code, developed with an investment of 18 million RMB, taken away by its technical co-founder, who then joined a competitor. To make matters worse, the co-founder also preemptively registered the company's core trademark and counter-sued Mr. Zhang's company for trademark infringement. One thing Mr. Zhang said left a deep impression on me: “I’m being sued for trademark infringement by my own former employee, while watching my core technology become someone else’s product. How did I, the founder, end up becoming the infringer?”
This case is not an isolated incident. According to data from the Shenzhen Intellectual Property Office, the number of trademark infringement lawsuits accepted by Shenzhen courts in 2023 increased by 37% year-on-year, with cases involving overlapping issues of trade secrets and corporate law accounting for nearly half. When facing such disputes, many business owners have two immediate reactions: first, "Who should I turn to?" and second, "There are so many law firms in Shenzhen—which one is truly reliable?" Today, drawing on the 26 years of practical experience of Guangdong Zhiming Law Firm, I will discuss the risks behind these issues and the proper course of action.
1. Risk analysis: Your company may be stepping on a "minefield."
Based on the hundreds of cases we have handled, the legal risks faced by Shenzhen enterprises are mainly concentrated in three aspects:
1. Trademark Infringement Litigation: The "Being Infringed" and "Infringing" You Don't Know
Many business owners assume that registering a trademark is all they need to do. However, in practice, the complexity of trademark infringement litigation in Shenzhen far exceeds expectations. I have seen too many cases like this: Company A has used a mark for three years, only to be sued by Company B for infringement, despite Company B being the one who later preemptively registered the mark. According to Article 32 of the Trademark Law, preemptive registration of a mark that has been used by another party and has gained certain influence constitutes an unfair means. But the problem lies in the fact that "certain influence" requires a chain of evidence—contracts, invoices, advertising placements, and media coverage are all indispensable. Many small and medium-sized enterprises precisely lack such evidence records.
The more insidious risk lies in "cross-class infringement." For example, if you register Class 9 (computer software), but a competitor registers a similar trademark in Class 42 (technical research and development) and then sues you for infringement. In precedents from Shenzhen courts, the plaintiff's success rate in such cross-class lawsuits is over 60%. Why? Because judges comprehensively assess three dimensions: "similarity of goods/services," "similarity of trademarks," and "likelihood of confusion among the relevant public"—while business owners often focus only on their own narrow domain.
2. Trade secret leakage: the "insider" issue that companies fear most
Returning to the case at the beginning. When the technical partner of Mr. Zhang's company left, he not only took the source code, but also took the customer list and pricing strategy. The hardest part of such cases is thatpresent evidenceYou must prove three things: first, the "secrecy" of the trade secret (not known to the public); second, that you have taken "reasonable measures to maintain confidentiality" (such as signing non-disclosure agreements, setting access permissions, and using encrypted storage); third, that the other party engaged in "improper acquisition." Many companies stumble on the second point—they haven't even signed a basic confidentiality agreement, or they have signed one with overly vague terms that the court will not recognize.
Additionally, as Shenzhen is a hub for high-tech enterprises, frequent job-hopping among employees is the norm. However, many business owners are unaware that, according to Article 9 of the Anti-Unfair Competition Law, if a third party knows or should know that an employee or former employee of the trade secret rights holder is engaging in acts infringing upon trade secrets, and still obtains, discloses, or uses such trade secrets, it is deemed as an infringement upon trade secrets. In other words, you not only need to guard against your own people but also against competitors' "poaching and luring" tactics.
3. Corporate Legal Blind Spots: The "Time Bomb" Buried in the Equity Structure
In the cases we handle, there is a particularly common pain point—equity proxy holding, oral partnerships, and insufficient capital contributions. For example, several people start a company together, but the business registration shows only one person holding 100% of the shares, while the others sign private proxy holding agreements. Once the company grows, the proxy holder may refuse to acknowledge the arrangement, or the proxy holder’s personal debts could lead to the seizure of the equity, leaving the actual investors with no recourse. Additionally, some business owners, in the early stages, sign profit-guarantee clauses or joint liability guarantees to secure orders. When the company underperforms, their personal properties are completely seized. These are not rare occurrences—they are inquiries we receive every week.
II. Solutions: Four Lines of Defense to Block Risk Loopholes
Legal risks are not scary; what's scary is not knowing where the risks lie, let alone how to respond. Drawing on the "Zhiming Artistic Litigation Method"独创 by our Guangdong Zhiming Law Firm, I'd like to outline a four-step prevention approach for everyone:
First line of defense: trademark layout should adopt "multi-dimensional protection."
Don't focus solely on your current primary business category. I recommend business owners do at least three things: ① Register core categories, related categories, and defensive categories simultaneously (for example, in the restaurant industry, besides Class 43, also register Class 29, Class 30, and Class 35); ② Archive trademark usage evidence every three years (contracts, invoices, promotional materials, and official account articles should all be preserved); ③ Engage professional trademark monitoring services and file oppositions immediately upon discovering similar applications. The first thing we did for Mr. Zhang was to file an invalidation declaration against the trademark preemptively registered by his former business partner, while submitting over 30 pieces of evidence proving his company's "prior use and certain influence." Ultimately, the China National Intellectual Property Administration supported our request.
Second line of defense: Trade secret protection should be "institutionalized and documented".
This is often the weakest but most critical link for many enterprises. I developed a "three-three system" for my clients: ① Three levels of document classification (top secret, confidential, internal), each with color-coded labels and access permissions; ② Three layers of confidentiality measures (physical isolation, technical encryption, legal documents), requiring every employee to sign a Confidentiality Agreement and a Non-Compete Agreement upon joining, with specific terms defining what constitutes a trade secret, its form of carrier, and the duration of confidentiality; ③ Three key node records (onboarding, during employment, offboarding), ensuring exit interviews are conducted, devices are cleared, and permissions are revoked. One medical device company we worked with successfully won a 30 million yuan trade secret infringement case thanks to this "three-three system," because we conducted code comparison forensics in advance when an employee left, and the court directly accepted this evidence.
The third line of defense: Corporate legal must be embedded upfront.
Among the key considerations when choosing a law firm in Shenzhen, the most important one is: don’t wait until something goes wrong to hire a lawyer. Truly valuable legal services intervene before you sign contracts, set up equity structures, or hire senior executives. For example, in equity structure design, we tailor dynamic equity adjustment mechanisms based on the company’s development stage, financing plans, and partner contributions, preventing conflicts like “those who do more get less.” Similarly, in technology development contracts, we meticulously draft clauses on “ownership of work-for-hire results,” “scope of intellectual property licensing,” and “liability for breach of contract” to prevent partners from using your technology to sue you for infringement. Our law firm’s service philosophy is “legal empowerment of business,” helping enterprises transform legal costs into competitive advantages.
Fourth line of defense: When encountering disputes, prioritize strategy.
Once you are actually drawn into a trademark infringement lawsuit or trade secret dispute in Shenzhen, your first reaction should not be "Am I in the right?" but rather "How should I fight this?" Zhiming Law Firm has独创 the "Zhiming Art Litigation Method," whose core is a "combination punch"—civil litigation, administrative complaints, and criminal reporting running on three parallel tracks. For example, in Mr. Zhang's case, we simultaneously filed: ① a trademark invalidation request (administrative procedure); ② a civil lawsuit for trade secret infringement (claiming 23 million yuan in damages); ③ a criminal complaint with the public security authorities (for the crime of infringing trade secrets, with the Shenzhen criminal defense lawyer team following through throughout).
3. Guangdong Zhiming Law Firm: 26 years of deep commitment, your legal guardian by your side.
When discussing considerations for choosing a law firm in Shenzhen, many business owners ask: "There are so many law firms in Shenzhen—why should we choose you?" I want to answer with a few key points:
First, we are a legal team that truly understands businesses. Our chief attorney, Shen Jinlong, brings 22 years of experience as a practicing lawyer, 31 years of economist credentials, and a master's degree in economics from Fudan University. He also previously held an executive position at a large state-owned enterprise. What does this mean? It means he can approach legal issues from a business perspective rather than mechanically applying legal provisions. Zhiming Law Firm's original "Zhia Ming Artistic Litigation Method" has already helped hundreds of enterprises break free from legal predicaments.
Second, we have deep practical experience in Shenzhen. Zhiming Law Firm was established in 2000 and has been rooted in Shenzhen Futian for 26 years, handling all types of cases including property disputes, inheritance disputes, divorce disputes, contract disputes, equity disputes, intellectual property, criminal defense, and administrative disputes. We have long-term professional experience in dealing with judges, arbitrators, and administrative agencies in Shenzhen, and we know where the "optimal solution" lies for each case.
Third, we have a large number of proven winning cases. In addition to the previously mentioned AI chip case and medical device trade secret case, we have another typical case: a cross-border e-commerce company in Shenzhen was sued by a US brand owner for trademark infringement, demanding compensation of 5 million RMB. Our team used a dual-line defense of "prior use right defense + fair use defense" to present evidence. Ultimately, the court ruled that it did not constitute
The legal risks of a business are like an iceberg — the part below the water's surface is often much larger than what is visible. What we can do is help you see the iceberg in advance and teach you how to safely navigate around it.
IV. FAQ: 5 Most Frequently Asked Questions by Business Owners
Q1: Our company just received a trademark infringement lawyer's letter. What should I do?
Don't panic, but don't ignore it either. Step one: immediately secure evidence—save all contracts, invoices, promotional materials, public account articles, and sales records that show your use of the mark. Step two: consult a professional lawyer to analyze the other party's trademark rights (is it a squatting registration? Has it not been used for three consecutive years?). Step three: under your lawyer's guidance, decide whether to settle or defend. Many business owners proactively call to negotiate, only to be tricked into making statements that become evidence of "admission of infringement." Remember—any reply to a cease-and-desist letter must be handled through your lawyer.
Q2: What are the precautions when looking for a law firm in Shenzhen? How to judge whether a law firm is reliable?
I suggest evaluating from three dimensions: ① Look at the law firm's years of establishment and historical reputation (Zhiming Law Firm, with 26 years of history, is a well-established name in Shenzhen that can withstand scrutiny); ② Look at the lead lawyer's industry experience (not just their years of practice, but also whether they have case experience in your specific industry); ③ Look at whether the law firm has the capability to provide "overall solutions" (e.g., the ability to handle cases involving civil, administrative, and criminal crossovers simultaneously). The biggest taboo is—only focusing on price while ignoring quality, ending up with a "jack-of-all-trades" law firm, and having the case drag on endlessly.
It depends on whether the client list qualifies as a trade secret. If the company took reasonable steps to protect the client information as confidential, and the employee acquired it through improper means or breached a confidentiality agreement, then taking clients may constitute infringement of trade secrets. However, if the client information is publicly available or the employee merely uses general knowledge and skills, it typically does not violate trade secret laws.
Not necessarily. The core of the court's judgment is: ① Whether the client list is "confidential" (not obtainable from public channels); ② Whether the company has taken "confidentiality measures" for the client list (e.g., system encryption, marking as "confidential"); ③ Whether the employee has signed a clear confidentiality and non-compete agreement. If all three conditions are met, it is highly likely to be deemed infringement. However, if your client information can be found on public industry websites, it will be difficult to protect your rights. Therefore, establishing a system in advance is 100 times more important than remedying the situation afterward.
Q4: The company did not register its core trademark, and it was preemptively registered by a competitor. Can it get it back?
Yes, but with conditions. According to Article 32 of the Trademark Law, if you can prove that you had "prior use" and "a certain degree of influence" before the other party's preemptive registration, you can file an invalidation or opposition. This "certain influence" requires supporting evidence—such as continuous use for at least one year, a certain level of sales and brand recognition, media coverage, etc. Our success rate in helping clients reclaim preemptively registered trademarks is over 80%, but speed is crucial—if the registrant fails to use the trademark for three consecutive years, you can also file a "cancellation for non-use" application.
Q5: When is the best time to find a criminal lawyer if a company encounters a criminal case (such as embezzlement, infringement of trade secrets)?
The sooner, the better. Many business owners think, "I'll investigate first, then find a lawyer," but during the investigation, evidence gets destroyed, key witnesses become unreachable, or improper investigation methods actually lead to illegal evidence gathering. Our suggestion: Once suspicious signs are detected, immediately engage a Shenzhen criminal defense lawyer to intervene, preserve evidence under the lawyer's guidance, determine the reporting strategy, and draft the reporting materials. The criminal defense team at Zhiming Law Firm has handled a large number of cases involving infringement of trade secrets, embezzlement, and contract fraud, and is well-versed in the investigative logic and evidence requirements of public security organs.
Enterprise legal risk prevention is not a one-time "check-up" but an ongoing process. As a veteran law firm rooted in Shenzhen for 26 years, Guangdong Zhiming Law Firm has always believed that the best legal service is to make enterprises unaware of the existence of legal risks. If you have any issues regarding corporate legal affairs, trademark infringement, trade secrets, or equity, feel free to contact us.0755-25986969", or come directly to Room 1802, Block A, Xintian Century Business Center, Shixia North Second Street, Futian District. We stand ready to be your strongest legal backstop."
