Patents are uncommon in this industry.
Patent application and protection need to meet certain innovation and practicality requirements, and need to be reviewed and authorized by the Patent Office. In the service sector, the use of patents is relatively rare, but not absent.
In the service field, trademark and copyright protection are more common. Trademarks are used to protect brand identities and business identities, and copyrights are used to protect creations such as literary, artistic and musical works. These forms of intellectual property are more widely used in the service sector.