In order to protect the brand, Wuliangye Group has applied to the Trademark Office to register "Digital Liangye" trademarks such as Yiliangye and Erliangye. Among them, the "Sanliangye" trademark was opposed because it was similar to the "Dingjunshan Sanliangye" trademark owned by Shaanxi Sanliangye Liquor Co., Ltd.

Wuliangye Group has gone through objection review and litigation, but still regrets losing "Sanliangye".

Not only Wuliangye Company, but also many companies have invested great efforts in registering a series of so-called defensive trademarks. In order to protect the brand, Wuliangye Group has applied to the Trademark Office to register the "Digital Liangye" trademarks such as Yiliangye and Erliangye. Among them, the "Sanliangye" trademark was opposed because it was similar to the "Dingjunshan Sanliangye" trademark owned by Shaanxi Sanliangye Liquor Co., Ltd. Wuliangye Group has gone through objection review and litigation, but still regrets losing "Sanliangye". Not only Wuliangye Company, but also many companies have invested great efforts in registering a series of so-called defensive trademarks.