Shen Jinlong, Shenzhen Trademark Infringement Litigation Lawyer — Personal Profile: Examining Corporate Legal Risk Prevention Through a Trade Secret Battle

📅 2026-08-11 📂 Corporate Corporate 🏷️ #Shen Jinlong Personal Profile #Which Lawyer in Shenzhen Is Good at Litigation #Shenzhen Trademark Infringement Litigation

深圳公司法务

Let me start with a real case. In 2023, a smart hardware company in Bao'an, Shenzhen, had its founder, Old Li, come to our firm. Just by the look on his face, you could tell it was serious. The core technology his company had spent two years developing had been taken away by a former product director who had left, and it had become a competitor's "own patent." What was even more infuriating was that the other party had also registered the company's English trademark in bad faith and had filed complaints on e-commerce platforms that got Old Li's main product removed from the shelves.

Old Li asked me at the time, "Lawyer Shen, is there still any hope here?" I said, there is hope, but you need to be prepared—this battle is fought on evidence, not emotions. In the end, it took us nine months to win both the trademark rights and trade secrets cases together. Not only did the opposing party have to pay compensation, but they also voluntarily withdrew the trademark they had preemptively registered. The case was won, but when Old Li reviewed the whole matter himself, he said something quite honest: "If I had come to you three years earlier to tighten up the legal fence, I wouldn't have spent these nine months at all."

This is also why I'm writing this article today. Shenzhen companies move fast, but many bosses' legal risk control is still stuck at the stage of "find a lawyer only when something goes wrong." You're doing business, but your opponents may be engaging in "legal hunting." The real risk for a company has never been the dispute itself, but the fact that you're unknowingly surrendering important legal ground to the other side.

Risk Analysis: Which Hidden Lines Has Your Company Stepped On?

Based on my twenty years of handling corporate legal disputes, the most common risks for Shenzhen enterprises can be condensed into three lines:

First, trade secrets are "streaking."

Many bosses think that since the company is theirs, as long as employees sign a confidentiality agreement, everything is settled. But an agreement is just a piece of paper. Do you have tiered management for your client lists, supplier bottom-line prices, design drawings, and code libraries? Can employees easily copy files and take them away? After employees leave, have you done any substantive follow-up on non-compete restrictions? Old Li's case is a typical example: that product director, three months before leaving, transferred the core drawings out in batches using his personal cloud drive. The company had no idea internally, because his actions were subtle, but every single move later became a fatal blow.

Second, trademark and brand positioning is lagging behind.

Shenzhen companies are accustomed to building products first and brands later, but the logic of the law is: whoever registers first gets the rights. Many entrepreneurs believe that "a sign I've used for a long time is mine," but in legal terms, unregistered trademarks receive extremely limited protection. If someone else preemptively registers the trademark, you either pay a hefty sum to buy it back, or your product listings get taken down entirely. The loss isn't just sales—it's your distribution channels and business goodwill.

Third, the awareness of evidence is weak.

We have received a large number of consultations in which businesses claim they have been infringed upon, and when asked whether they have evidence, the most common answer is "you can see it all online." But litigation doesn't require "being able to see it"; it requires proving that "you were first," "they copied," and "the loss is real." Many cases are not lost on the merits, but rather on the failure to preserve evidence in a timely manner and the use of improper evidence collection methods. A special reminder here: casual screenshots of electronic evidence are invalid; you need a complete preservation chain with timestamps and sources.

Of these three lines, if you cross even one, at the very least you'll lose money, and at worst your business will come to a standstill. What's even harder to bear is that even if you ultimately win the lawsuit, the time window and market rhythm you've lost can never be made up.

深圳公司法务

Solution: From Firefighter to System Builder

So what's the solution? My answer isn't to have every Shenzhen company maintain a large legal department, but rather to establish a "light but effective" legal risk prevention system. The core consists of just four steps:

1. Trade secret classification and traceability management.

Your company doesn't need to keep every document confidential, but you must assign classification levels. Core drawings, algorithm source code, strategic plans, and pricing for key accounts should be classified as confidential; for access to these documents, download approvals, and review of external emails, establish clear system trails. The confidentiality agreement new employees sign upon onboarding is not a blanket document but an itemized disclosure of the scope of confidentiality; upon departure, conduct exit interviews, revoke access permissions, have them sign a departure commitment letter, and maintain necessary compliance outreach during the non-compete period. It took Lao Li less than a month to later build this system, but he remarked with feeling: legal prevention isn't about spending money—it's about saving money.

2. Trademark Defensive Registration and Monitoring.

When doing products in Shenzhen, trademarks should be registered half a step ahead of the product itself. Beyond the main trademark registration, file defensive registrations for similar names around the core category and common defensive classes in the industry. At the same time, set up a trademark monitoring mechanism—once you spot someone filing a same or similar trademark in a related class, file an opposition immediately. This costs a hundred times less than initiating an invalidation procedure after you've been operating for a year or two. Old Li's company suffered precisely because they only registered the core class, allowing competitors to seize the related "smart device" category, which led to complaints and delisting on e-commerce platforms. This is a real lesson.

III. "Embedded" Management of Contracts and Daily Legal Affairs.

Many companies just download contract templates online, but templates can't resolve real disputes. From intellectual property ownership clauses in supply contracts, confidentiality and non-compete clauses in employee contracts, to ownership-of-results clauses in collaborative development with suppliers, all need to be tailored to your business model. Get it right once, and your odds of winning in future litigation increase.

IV. Preservation of Evidence After an Infringement Occurs.

Once you discover infringement, the first thing to do is three things: notarize and preserve the infringing content online, apply to the court or platform for access to the other party's backend data, and commission a professional institution to perform identity verification on the technical code—rather than rushing to call and argue. This composure comes from knowing in advance how to preserve evidence.

Zhiming Law Firm's Advantage: More Than Winning Cases — It's Systematic Resolution

Guangdong Zhiming Law Firm, established in 2000, is a long-standing law firm in Futian, Shenzhen, with 26 years of deep experience. Our greatest strength lies in our courage and ability to handle difficult and complex cases, rather than merely following standardized procedures.

For example, in 2022, our team took on a trade secret case for a medical device company in Shenzhen. The opposing party was a listed company with a powerful legal team and financial advantages, while our side only had original design drawings and scattered email correspondence. If we had followed the conventional approach of filing a lawsuit based on a single point of infringement, our chances of winning were almost negligible. However, our team did two things: first, we extracted the "non-public" technical points from the massive volume of technical documents and applied for judicial appraisal; second, we pieced together fragmented information, such as social connections between the company's executives and former employees and anomalies in bank transactions, into a complete evidence chain of "improper acquisition." In the end, we obtained a favorable judgment in the first instance, and the opposing party proactively sought a settlement.

The lawyer handling cases like these is none other than our director, Attorney Shen Jinlong. Attorney Shen has 22 years of experience as a practicing lawyer, along with 31 years of qualifications as an economist. He holds a master's degree in economics from Fudan University and has also served as a senior executive at a large state-owned enterprise. This background gives him an extra layer of business acumen when handling corporate equity disputes, trade secret cases, and contract disputes—something a pure litigation lawyer might lack. He doesn't just think about how to win; he also considers how your company can continue operating normally after the win.

Many people ask, which lawyer in Shenzhen is really good at winning cases? We never boast about being good. Zhiming Law Firm has handled over 10,000 cases in total, with business scope covering real estate, inheritance, divorce, contracts, equity, intellectual property, criminal defense, and administrative disputes—but our core strength is breaking down complex cases into systematic solutions. If you are facing risks of trademark infringement, equity disputes, or trade secret disclosure, you are welcome to call Zhiming Law Firm directly for consultation: 0755-25986969. Address: Room 1802, Block A, Xintian Century Business Center, Shixia North Second Street, Futian District, Shenzhen.

FAQ: The Three Most Frequently Asked Questions by Business Owners

Q1: An employee left the company and took client information, but no non-compete agreement was signed. Can we sue?

You can sue, but the legal basis you should invoke is trade secret protection, not non-compete restrictions. For a customer list to constitute a trade secret, it must be unknown to the public, have commercial value, and be subject to confidentiality measures you have taken. If you haven't even encrypted your files, it will be difficult to establish it as a trade secret. We have handled similar cases and ultimately won on the grounds of breach of fiduciary duty and infringement of business secrets. But the prerequisite is: you need to organize the evidence now, not wait.

Q2: Our company is being sued for trademark infringement, but I think the other party is just trying to extort us. What should we do?

Do not reply to the other party's lawyer's letter immediately, and do not remove the links. Preserve the platform's complaint records, product snapshots, and purchase notarization, then do two things: first, analyze the application date and usage of the other party's trademark to see whether there is any suspicion of bad-faith registration; second, sort out evidence of your own prior use. If prior use is indeed established, you can assert a non-infringement defense or apply to have the other party's trademark declared invalid. This type of lawsuit is highly time-sensitive, so do not delay.

Q3: For a small company, is it expensive to hire a lawyer for annual legal services now?

Investment in legal risk prevention is always an order of magnitude lower than litigation costs. The value of a standing legal counsel lies not in fighting lawsuits for you every day, but in the risks you never anticipated—having someone who understands business, law, and the Shenzhen market ecosystem to shield you from them in advance. Let's do the math: a trade secret infringement lawsuit, from first instance to second instance, can easily cost hundreds of thousands in attorney fees plus time costs—and that same amount could retain a standing legal counsel for several years. More importantly, some losses cannot be bought back with money.

Attorney Shen often says: "A good lawyer isn't one who helps you win lawsuits, but one who helps you avoid them." On this entrepreneurial frontier of Shenzhen, Zhiming Law Firm is willing to be the one who steps on the brakes for you.

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