Legal analysis: the scope of regional protection is not clearly defined, and each brand will be different. Generally, this range will be determined according to many factors, such as the economic development of this area, or the product characteristics of this brand, or the development direction of this brand, or the population density of this area.

Legal basis: Article 43 of the Trademark Law of People's Republic of China (PRC): A trademark registrant may authorize others to use his registered trademark by signing a trademark license contract. The licensor shall supervise the quality of the goods in which the licensee uses its registered trademark. The licensee shall guarantee the quality of the goods using the registered trademark.

Where a registered trademark of another person is used with permission, the name of the licensee and the place of origin of the goods must be marked on the goods using the registered trademark.

Where another person is licensed to use its registered trademark, the licensor shall report the licensing of the trademark to the Trademark Office for the record, and the Trademark Office shall make an announcement. Without filing, the trademark license shall not be used against bona fide third parties.