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Protecting a chair design when you manufacture in China

A Canadian chair factory tells of customers bringing in Chinese-made copies of its own frames — thinner steel, cracked welds. That is the fear every buyer carries into an OEM programme. The protections that exist are real but specific: the right agreement, the right registrations, the right mould clauses — and a clear-eyed view of what none of them can do. Written for buyers, not lawyers, and not a substitute for one.

Updated 2026-06-12 · 10 min read

First, an honest question: do you own anything protectable?

Before spending on protection, establish what you have. If your chair is a factory’s open-mould catalogue model with your fabric on it, you own a brand and a spec, not a design — the silhouette belongs to the factory and is already being sold to others, as the ODM versus OEM guide explains. Protection effort there goes into your trademark and your supply terms, not the shape of the chair. If you commissioned original tooling — your designer’s geometry, your moulds — you own something registrable, and the rest of this guide is about defending it.

Be equally honest about novelty. Design protection regimes protect new and distinctive appearance; a mesh task chair that looks like every other mesh task chair will not survive a validity challenge, however sincerely you drew it. The strongest candidates are the recognisable signatures — a distinctive back frame, an unusual base, a silhouette a customer could pick out of a line-up.

The NNN agreement: the Western NDA’s useful cousin

The document experienced China buyers use is not an NDA but an NNN agreement — non-disclosure, non-use, non-circumvention. The three parts answer three different betrayals. Non-disclosure: the factory may not show your designs to others. Non-use: the factory may not manufacture your design for itself or anyone else — the clause a plain NDA misses entirely, and the one that matters most, since the realistic risk is not your drawings being leaked but your product appearing in the factory’s catalogue. Non-circumvention: the factory may not go around you to sell directly to your customers.

Form matters as much as content. The convention among practitioners is that an NNN intended to deter a Chinese manufacturer should be governed by Chinese law, written in Chinese (or bilingually with the Chinese version controlling), enforceable in a Chinese court with jurisdiction over the factory, and carry agreed liquidated damages — a stated sum per breach. The logic is practical: a Delaware-law NDA produces a judgment no Chinese court is obliged to act on, while a Chinese-law contract with quantified damages is a document the factory’s own legal system can enforce against it, which changes how seriously it is read on signature day. Have it drafted by a lawyer who does China work; templates from the internet are how this clause class earned its bad reputation.

Timing is the part buyers get wrong: the NNN is signed before you send drawings, renderings or even a detailed verbal description — not at order time. Once the design has been disclosed naked, the agreement protects whatever is left, which may be nothing.

NNN versus NDA, in one box

Non-disclosure
Both have it: no showing your design to third parties
Non-use
NNN only: the factory may not make your design for anyone — including itself
Non-circumvention
NNN only: no selling around you to your customers
Governing law
Chinese law, Chinese language version controlling, Chinese jurisdiction
Teeth
Liquidated damages — a stated sum per breach, enforceable locally

Register in China, before disclosure, in your name

China runs a first-to-file system for both design patents and trademarks: rights generally belong to whoever registers first, not whoever created first. Two consequences for a chair buyer. File the design patent — China’s registration for product appearance — before the design circulates, because your own marketing photos or a factory’s catalogue listing can destroy the novelty a later filing needs, and because if you do not file, nothing stops someone else filing your design and pointing the enforcement machinery at you. Filing is administrative and inexpensive by IP standards; a China IP agent handles it without drama.

Register your trademark in China even if you never plan to sell there — including, where relevant, its Chinese-character rendering. Trademark squatting is an industry: marks belonging to foreign brands get registered locally by third parties and then ransomed back, or worse, used to have your own goods stopped at the port for infringing “their” mark. The fix costs a few hundred dollars and a year of patience before the problem exists, and multiples of that after.

If your market is Europe or the US, mirror the registrations there — a registered Community design or US design patent gives you standing against imports of copies at your selling end, which in practice is where enforcement is most likely to succeed.

Mould ownership: the clause that decides who owns the chair in practice

Whatever the registrations say, the party holding the moulds can make the chair tonight. If you paid for tooling, the contract must say so in terms a court and a removal truck can both act on: the moulds are your property; they are marked as such; they may be used only for your purchase orders; they may not be modified or copied; and they are returnable on demand, with the consequences of refusal spelled out. Leave it ambiguous and custom tooling defaults, in every practical sense, to the factory holding it.

Seasoned programmes add two refinements. They photograph and inventory the tools — serial numbers, cavity counts — at the factory, so “return the moulds” has an object list attached. And some split critical tooling or components across suppliers so no single factory holds the complete recipe; that costs coordination and is usually worth it only for genuinely distinctive products. Tie the tooling clauses to your commercial terms: a factory that has not been fully paid for an order has its own lien instincts about your moulds, so keep the payment schedule clean and documented.

The limits — and the defences that work anyway

Now the honest part. None of this stops a third party — a factory you never met — from buying your chair at retail, scanning it, and tooling a copy. The Canadian factory whose frames came back as thinner-steel copies had no contract with the copyist; registrations give you standing to act against copies, but acting means litigation or customs enforcement, which costs money and works unevenly. Enforcement against your own contracted factory is far more realistic — that is exactly what the NNN’s liquidated damages and Chinese jurisdiction are for — but even there, suing a supplier is a relationship-ending, year-consuming event you would rather never trigger.

So the practitioners’ defence stack is mostly commercial. Move fast: be selling the next revision while the copyists tool the last one. Make the copy unattractive: copies compete on the visible shape, so put your quality where copying is expensive — components, foam, warranty, service. Choose suppliers whose business depends on export reputation rather than opportunism, which is a verification question as much as a legal one. And keep your paper in order — signed golden samples, dated drawings, registration certificates — because every enforcement route, from a marketplace takedown to a customs seizure, starts with proving what is yours and since when. The buyers who keep their designs are rarely the ones with the fiercest contracts; they are the ones who made copying a worse business than partnering.

Frequently asked questions

What is an NNN agreement and how is it different from an NDA?

NNN stands for non-disclosure, non-use, non-circumvention. A plain NDA only bars the factory from showing your design to others; the NNN adds the clause that actually matters — the factory may not manufacture your design for itself or anyone else — plus a bar on selling around you to your customers. To deter a Chinese manufacturer it should be governed by Chinese law, controlled by its Chinese-language version, enforceable where the factory sits, and carry stated liquidated damages. Sign it before disclosing the design, and have it drafted by a lawyer who does China work.

Should I file a design patent in China if I do not sell there?

Generally yes, because China is first-to-file: rights belong to whoever registers first, and if you do not file, a stranger can register your design and turn the enforcement system against your own production. Filing before the design circulates also preserves novelty. Mirror the registration in your selling markets — an EU registered design or US design patent is what lets you act against imported copies at home.

Who owns the moulds if I paid the factory to make them?

Whoever the contract says — and silence favours the factory holding them. Write it explicitly: the tools are your property, marked and inventoried as such, used only for your purchase orders, not to be modified or copied, returnable on demand with stated consequences. Photograph and serial-number the tooling at the factory so the clause has an object list attached.

Can I really stop a Chinese factory from copying my chair?

Your contracted factory — largely yes, with a proper Chinese-law NNN and registrations; that is an enforceable relationship. A third-party factory that buys your chair and copies it — only partially: registrations give you standing for takedowns, customs action or litigation, all of which cost money and work unevenly. The defences that work daily are commercial: iterate faster than copyists tool, put quality where copying is expensive, and choose partners whose export reputation is worth more than your design.

When should I put design protection in place?

Before disclosure, every piece of it. The NNN is signed before drawings or renderings are sent; the China design patent is filed before the design appears in any catalogue or marketing photo, because publication can destroy the novelty the filing needs; the trademark is registered before the brand is worth squatting on. Protection bought after the fact costs multiples and protects less.

Related categories: Ergonomic chairs · Sofas & recliners

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