The business scope of trademark registration companies mainly involves domestic and international trademark registration, changes, transfer, licensing, renewal, re-examination, response, disputes, infringement lawsuits, as well as famous trademark applications, renowned trademark applications, China's well-known brand trademark registration, China's excellent brand, China's quality product, double guarantee of quality and reputation units, national standard qualified products with quality assurance trusted by consumers, trustworthy products for consumer shopping in China, national quality trustworthy products, and state-authorized quality qualified products.