Do I have to pay royalties for using the name Hangzhou steamed buns?

Basically, you can't apply for a patent with a local name and a trade name, but local governments can apply, such as Lanzhou beef, Lamian Noodles, Chaoshan beef balls and so on. This patent name is free, but the product must meet the standards. At present, the Hangzhou government has not applied for a patent for steamed stuffed bun, and anyone can use this name casually.