China's utility-model system lets an inventor file a short-form patent that is examined only formally and grants within 6–10 months, with a 10-year term and no substantive novelty review at the filing stage. That structure rewards genuinely novel small hardware — and it also creates weapons. One utility model, ZL201420522729.0, "An Integrated Selfie Device", became the most litigated patent in modern Chinese history. The rights holder, referred to here as [Company P], filed roughly 6,300 lawsuits between 2015 and 2024, won almost all of them, and turned a folding phone holder into a ¥300-million-valued portfolio. Two judgments from this campaign — one against a repeat-manufacturing defendant [Company M] and one against a small retailer [Shop R] — show how Chinese courts handle repeat infringement, the legitimate-source defence, and statutory damages at both extremes.
The patent was filed on 11 September 2014 and granted on 11 February 2015 to [Company P], a Shenzhen plastics-and-electronics manufacturer. Claim 1 describes a selfie stick with a telescopic rod, a clamping mechanism, and a rotatable bolt connecting the clamp to the rod. Claim 2 — the claim [Company P] relied on in virtually every lawsuit — adds the critical feature: the loading platform has a notch, and the clamping mechanism has a bent portion corresponding to that notch, so that when the rod is folded the rod seats into the notch and the bent portion. That folding-and-seating geometry is what made the product distinctive and what made infringement easy to prove by physical inspection.
A 2015 office action had found claim 1 lacked novelty, but claims 2–13 were confirmed novel and inventive. The patent was challenged in 26 invalidation requests; only the first succeeded on claim 1, and claims 2–13 survived every later attack. That durability mattered: defendants kept trying to kill the patent instead of settling, and kept losing.
[Company M], a Zhongshan plastic-products company, manufactured selfie sticks that [Company P] bought through evidence-preservation notaries and sued for infringement. Guangzhou Intellectual Property Court found [Company M] infringed claims 2–13, ordered it to stop manufacturing and selling, destroy inventory, and pay ¥1,000,000 in damages plus reasonable enforcement costs. [Company M] appealed to the Supreme People's Court's Intellectual Property Tribunal, arguing the amount was excessive for a low-price product.
The SPC IP Tribunal ruled on 30 July 2020 (case (2020) 最高法知民终357号). It affirmed the full ¥1,000,000 award. The reasoning turned on two findings: [Company M] had already been found liable in an earlier infringement suit, yet continued manufacturing and selling the same product — a textbook repeat infringement; and as a manufacturer it sat at the source of the infringement chain, not merely a downstream seller. Under Article 65 of the Patent Law and the judicial interpretation on statutory damages, a court may set damages within the ¥100,000–¥5,000,000 statutory band with upward discretion when malice and repetition are proven. The Tribunal held that the lower court had not abused its discretion by going to the top of the realistic range for a repeat manufacturing infringer. The personal operator behind [Company M], Mr. Liu Tao, was held jointly and severally liable.
The second thread is the one that matters to small businesses. [Shop R], an individual-industrial-household phone-accessory shop in Helan County, Ningxia, sold a selfie stick for a few tens of yuan. [Company P] notarised the purchase, sued, and asked for ¥20,000. [Shop R] defended with the legitimate-source defence under Article 70 of the 2008 Patent Law: it showed Taobao order records, the vendor's business licence, and Alipay payment slips proving it bought 40 units from an online seller.
Yinchuan Intermediate Court and then the SPC IP Tribunal (case (2020) 最高法知民终376号) ruled against [Shop R] anyway. The reason: the selfie sticks [Shop R] sold were "three-no products"— no manufacturer name, no factory address, no production date, no quality-certification mark on the product or packaging. A retailer in the mobile-accessory trade owes a higher duty of care than an ordinary consumer; stocking three-no goods is treated as knowing or wilfully blind to the infringement, which defeats the legitimate-source defence even when the purchase trail is real. The court awarded ¥2,000 — below the ¥10,000 statutory minimum — citing the small scale, thin margin, and lack of proof of larger loss, but still held [Shop R] liable because the defence had failed.
This is the subtle part: the legitimate-source defence in Chinese patent law shields a seller from damages but not from an injunction, and it only works when the seller proves (1) it did not know the product was infringing, and (2) it disclosed the supplier so the right holder can trace upstream. Three-no goods presumptively break element (1).
The contrast — ¥1,000,000 vs ¥2,000 — is not arbitrary. Chinese courts in batch-patent campaigns now follow a source-tracing hierarchy:
● Manufacturers / repeat infringers → high-end statutory damages, joint liability for principals.
● Wholesalers with traceable supply → legitimate-source defence works → injunction only, no damages.
● Retailers selling three-no goods → defence fails → injunction + low damages scaled to scale and margin.
● Retailers selling labelled, traceable goods who truly did not know → defence works → injunction only.
The SPC IP Tribunal explicitly endorsed this ladder in its batch-patent guidance, noting that statutory damages may fall below the ¥10,000 floor or rise toward the ¥5,000,000 ceiling when the evidence supports it. [Company P]'s campaign is the showcase: it sued manufacturers hard (¥1,000,000 against [Company M]) and retailers soft (¥2,000 against [Shop R]), which pushed settlements upstream where they actually reduced supply.
Two doctrine details explain why [Company P] won almost every suit:
● All-elements rule : infringement requires every technical feature of the asserted claim to be present in the accused product. Because claim 2's notch-and-bent-portion feature is visible by unfolding the stick, [Company P]'s lawyers could prove infringement with a notarised purchase and a side-by-side photo. No expert report needed in most cases.
● Utility-model presumption: a granted utility model carries a presumption of validity; the accused infringer bears the burden of invalidating it. With claims 2–13 surviving 25 invalidation rounds, defendants had nowhere to run.
The case compresses into a short checklist:
● Audit the supply chain for three-no goods. If you resell hardware in China and the product or box lacks manufacturer ID, address, and certification marks, you cannot rely on the legitimate-source defence even with clean purchase records.
● Demand manufacturer identity from suppliers in writing. The defence requires you to name the supplier; an anonymous Taobao shop with a business licence screenshot is weaker than a contract with a named entity.
● A utility-model certificate is enforceable immediately. Do not assume a Chinese "small patent" is weak — ZL201420522729.0 survived 26 invalidation attempts and drove 2,000+ judgments.
● Repeat infringement is priced brutally. If you manufacture and get caught once, continuing to ship turns a ¥100k problem into a ¥1m+ problem with personal joint liability.
● Settlement leverage sits upstream. Rights holders in batch campaigns want the manufacturer, not the retailer; a retailer who discloses the supplier early often exits with an injunction and no damages.
For foreign companies, the trap is usually the opposite of what they expect: not that Chinese patents are unenforceable, but that a Chinese utility model held by a local player can be enforced against your imported SKUs faster than you can invalidate it. The [Company P] campaign ran on exactly that dynamic — most defendants settled after the first demand letter once they realised the patent would not fall.
● Supreme People's Court – Guiding and typical IP cases (batch selfie-stick rulings referenced)
● SPC IP Tribunal – (2020) 最高法知民终376号 retailer ruling
● MOFCOM IPR Protection Net – SPC open ruling on 4 selfie-stick utility-model cases
● CNIPA – 2025 IP administrative protection typical cases
