Defensive registration refers to the layout practice in which a trademark owner, to protect a core brand, registers the same trademark in classes not directly related to its main business, or registers similar variants of the core mark. The purpose is not the owner's own use, but to prevent others from free-riding in related fields and to keep the brand from being diluted.
Two Basic Forms
The first is cross-class defense: registering the core trademark in related classes beyond the main business class, or even in all classes—for example, a food company registering the same mark in the clothing and toy classes to prevent others from using it on peripheral goods in a way that causes confusion. The second is mark-variant defense: registering common variants of the core trademark, such as simplified and traditional forms, pinyin, common misspellings, and forms with added or removed characters, closing off the space in which others might skirt the edges.
Why Defensive Registration Is Needed
Trademark protection in China is limited to the approved goods; another party registering an identical trademark on dissimilar goods is lawful in principle. Once a brand grows, cross-class free-riding dilutes the brand and misleads consumers, and obtaining cross-class protection through well-known-trademark recognition has a high threshold and is case-specific. Advance defensive registration is a cost-controllable form of proactive protection.
Compliance Boundaries
Defensive registration must proceed within the framework of genuine intent to use. Article 4 of the Trademark Law provides that bad-faith trademark registration applications filed without intent to use shall be rejected; large-scale hoarding registrations without intent to use will be held to be bad faith—the applications are rejected, registrations already obtained may be declared invalid. The difference between defensive registration and bad-faith hoarding is that the former unfolds within a reasonable protective radius around one's own genuine brand, whereas the latter preempts others' signs for the purpose of reselling or extortion.
Non-Use Cancellation Risk
Where a registered trademark has not been used for three consecutive years without justifiable reason, anyone may apply for its cancellation (Article 49 of the Trademark Law). Defensive classes left unused for long periods face non-use cancellation risk. The countermeasures are: preserve evidence of genuine use in defensive classes, such as licensed use or actual use on related products; or carry out relay registrations as the cancellation risk approaches.
Layout Suggestions
Cover the main-business classes first, then the closely related upstream and downstream classes and classes prone to confusion, and finally decide whether to expand in light of the brand's stage of development. Mark-variant defense should focus on the variants most likely to be imitated. Defensive registration should be implemented in stages as the brand grows, avoiding the maintenance costs and non-use cancellation pressure of a one-off full-class registration.
How the above concepts apply in a specific case still varies in detail; you can consult a record-filed agent on MyTMBee for an analysis opinion tailored to your case.