How to Protect Your Product from Being Copied
Register the trademark in China, own the mould by contract, split the design and lock the firmware. What slows copying, and what protects nothing.
Protecting a product manufactured in China comes down to five concrete measures: registering the trademark with the CNIPA before manufacturing, invoicing the mould in your own name, signing a confidentiality agreement under Chinese law, splitting the design across several suppliers and locking the firmware. The most counterintuitive is the trademark: China runs on first to register, not first to use, and a trademark registered there lasts 10 years and is renewable. None of these measures stops anyone from copying you. What they do is make the copy arrive late enough that it is not profitable.
Operational guidance, not legal advice.
The starting point: if the product sells, it will be copied
In consumer electronics, a product that works gets copied. The goal is not perfect protection: it is to make copying you slower and less profitable than innovating.
Copying almost never starts in your factory out of malice: it starts in the ecosystem around it — the workshop that made the mould, the module supplier, the worker who changed jobs. In Shenzhen the distance between seeing a product and having the mould is short.
What a confidentiality agreement does and does not do
An NDA gives you the right to claim damages from the party that signs it. It does not stop a third party from copying your product once it is on the market.
It achieves two things. It creates the contractual obligation not to use and not to disclose. And it is the “reasonable confidentiality measure” that China’s Anti-Unfair Competition Law requires for information to qualify as a trade secret: without an agreement there may be no secret to claim.
Three mistakes void it in practice:
- Foreign governing law. A contract under Mexican or Brazilian law does not bind a Chinese company in China.
- Foreign court. Foreign judgments are not enforced; what is enforced are arbitral awards, under the New York Convention.
- English version as binding. Proceedings are conducted in Mandarin: the agreement has to be drafted in Chinese, and that version is the one that governs.
Add that the obligations extend to employees, subsidiaries and subcontractors, and a fixed sum payable for breach.
Mould ownership: the most concrete protection there is
The mould is your only physical asset in China, and its ownership decides whether you can ever change factory.
It has to be stated expressly, not inferred from payment. The ownership clause, the tooling invoice and the purchase order have to agree on who owns it, who holds it, what it may be used for and how it is returned. A payment does not by itself transfer ownership: the factory can argue that you paid for a manufacturing service, not a sale.
If you do not do this, the mould stays in the supplier’s workshop. When you want to change factory, they do not return it or they name a figure. They use it for other buyers and nothing stops them. And in the most expensive case, they register a design over your product and end up holding a right that blocks you. Without your own mould you carry on amortising the tooling inside the unit price, with no way to ask for a price anywhere else.
The practical part: identify it. A plate on the mould with your reference, the physical location of each part, dated photographs and the value of the tooling in the contract. With no declared value, a claim has no figure to be built on. The same goes for drawings, CAD and Gerber files: owner, delivery and return at the end of the relationship.
Trademark registration in China: first to register, not first to use
China grants the trademark to whoever files first, not to whoever uses it first. If you do not register your trademark there, someone else can register it, and from there they can block the export of your own goods.
Chinese registration does not require proof of use, so registering other people’s trademarks is a business. The holder can stop you using your own brand, sell the brand back to you, or record the right with China Customs (GACC) so that your outbound shipments are detained. Customs recordal rests on a right that already exists in China and does not create a new one: it lets customs stop suspicious goods on their own initiative, without you knowing the shipment existed.
Before manufacturing and before sending the first drawings. If you have already filed in Mexico or Brazil, the Paris Convention gives you six months of priority to claim that date in China. If you are going to use Chinese characters, register those too: the Latin version alone does not protect you against a similar Chinese mark.
Ten years, renewable. After publication there are three months to oppose, and since the 2019 reform anyone can oppose a bad-faith application. The reverse: a trademark unused in China for three consecutive years can be cancelled.
Modular design: no supplier sees the whole product
Splitting the product across several suppliers means none of them has the information needed to copy it whole.
In an electronic product the natural split is by function: enclosure and mould at one factory, assembled board at another, firmware developed by you or by a third party, final assembly at a third. The one that holds the mould has neither the board nor the firmware.
The real cost is logistical. Three suppliers instead of one makes coordination more expensive and forces you to consolidate: MeliPrep publishes third-party cargo consolidation at USD 1.80 per m³ handled, for clients with their own suppliers.
The honest limit: whoever assembles, sees. It does not work when the value of the product is a single design that integrates everything into one piece, or when final assembly is done by a supplier that by definition sees the whole product. With that supplier, the confidentiality agreement matters more than with any other.
Firmware and software locking: it raises the bar, it does not close it
Locking the firmware makes copying more expensive, but it does not prevent it. It turns “buy the same components and flash the same binary” into “dump the firmware, understand it and maintain your own”.
Secure boot with signing, protected microcontroller readout, memory encryption or validation against a server raise the engineering cost of the copy, and that cost decides whether copying you is worth it: a competitor with resources will dump it and rewrite it.
One warning: firmware you cannot update is your problem. Keep the source code and the keys; if you depend on the manufacturer to compile and sign, you end up tied to them.
Speed as protection
The strongest defence is not legal: it is putting new product on the market before the copy arrives. The other measures buy time; this one decides what you do with it.
Copying has a structural delay: sourcing components, cutting the mould, producing, shipping and distributing. If your catalogue renewal cycle is shorter, the copy arrives when you are already on the next model.
Registering at home and registering in China are not the same thing
A trademark is territorial. Your registration in Mexico or Brazil protects your market; it does not protect your production.
Mexico. Registration with the IMPI, 10 years, with a mandatory local representative. What is specific to Mexico is the declaration of use: it is filed in the third year of the registration with evidence of real use, inside a window of about three months from that date. If it is not filed, cancellation is automatic. It does not exist in China or Brazil, and it is the formality that takes down more Mexican registrations than any other.
Brazil. Registration with the INPI, 10 years, with a mandatory Brazilian attorney. Brazil has no declaration of use in the third year, but it does allow the registration to lapse for lack of use in Brazil for five consecutive years.
What they share. All three countries are in the Madrid Protocol — Mexico since 2013, Brazil since 2019 — so an international registration can cover them at once, with independent examination in each office. Whether Madrid works out cheaper than filing country by country depends on the number of classes; that comparison is one for a lawyer.
What protects nothing, even when it is sold to you as protection
Marking documents “confidential” with no signed agreement. The word in the footer of a PDF creates no obligation. Confidentiality comes from the contract, not from the stamp.
Relying on the supplier’s reputation. Reputation is not a clause and gives you nothing on the day there is a conflict. Before paying you can verify the entity: MeliPrep publishes that documentary factory verification at USD 349 per supplier.
Assuming the factory will not sell your product to your competitor. It is not a betrayal, it is a business decision: the mould already exists, the line is already set up and the marginal cost of one more run is low.
Registering the trademark only in your country and believing that covers you in China. A Mexican or Brazilian registration means nothing before the CNIPA.
Confusing the NDA with a patent. The NDA binds whoever signs it; a patent and a trademark can be asserted against anyone.
Decision table: what each measure stops and when to do it
| Protection | What it does stop | What it does not stop | When |
|---|---|---|---|
| Trademark in China (CNIPA) | Another party registering it and blocking your exports | Copying of the physical product | Before sending drawings or paying a deposit |
| Trademark in Mexico (IMPI) or Brazil (INPI) | Another party registering it in your market | Copying at source | At launch; in Mexico, declaration of use in year 3 |
| Mould ownership by contract | The factory keeping the mould or reusing it | A third party copying the finished product | Before paying for the tooling |
| NDA under Chinese law with arbitration | The signatory disclosing your information | A third party who did not sign it | Before sharing drawings or prices |
| Modular design | One supplier seeing the whole product | A copy made from the market | Before closing the bill of materials |
| Firmware locking | The copy being a hardware duplicate | Anyone who knows how to dump the firmware | Before mass production |
| Design registration in China | The factory patenting your design | Non-identical copying | Before the factory has the drawings |
| Catalogue speed | Copying you being profitable | Nothing on its own | Permanent |
The order matters more than the list
If you are only going to do three things, make them the ones that are settled before there is a product to copy: trademark in China before manufacturing, mould in your name before paying for the tooling, and a confidentiality agreement before sending the drawings.
None of this makes copying impossible. An industrial-property lawsuit in China is slow and expensive, and it is not the route by which a consumer product is defended. These measures are worth what they give you before the conflict: time, leverage over the supplier and a right you can assert against a third party. Trademark registration in particular: put it in the hands of a Chinese industrial-property lawyer.