The "defensive nature" of trademark registration has two meanings: First, after registering a trademark in one category, the same trademark will be registered in other categories that the enterprise may be involved in in the future, so as to prevent others from preemptively registering the trademark in the enterprise. Register for categories you may be involved in in the future. For example, if the word "Zhongyun" is used as a trademark and is registered for beer and mineral water in the 32nd category of the "Classification Table of Similar Goods and Services" (referred to as the "Classification Table"), in order to prevent others from using the liquor, liquor, and mineral water that the enterprise can get involved in the future, Be the first to register the "Zhongyun" trademark on red wine and dairy products, and then register the "Zhongyun" trademark on the 33rd category of white wine and red wine and the 29th category of dairy products; secondly, how to register "Zhongyun" After the word trademark is registered, words similar to the "Zhongyun" trademark, such as "Zhongyun" and "Zhongyun", are registered as trademarks in the same category. The purpose is to protect the "Zhongyun" trademark as much as possible. Sex registration measures.