Request for invalidation of invention patent right: 3000 yuan.
Request for invalidation of utility model patent right: 1500 yuan.
Request fee for invalidation of design patent right: 1500 yuan.
All the above are the official expenses of the request for invalidation. According to national regulations, it is necessary to pay fees. If you are looking for an agency to apply for patent invalidation for you, then you need to pay the agency fee.