It depends on whether you want to apply by yourself or find an agency. You can prepare the information and go directly to the Patent Office to apply online/or if you find it troublesome, you can directly ask an agency to apply for you and save yourself the trouble. Previously, our colleagues were looking for Bajie’s intellectual property. You can find out for yourself: /patent/zlsq/?_union_identify=21&_union_uid=14012189&_union_itemid=1456669