The patent power of attorney shall be sealed by the school.

What you want to ask is what if the patent power of attorney is stamped by the school? Seek help from other institutions and find other ways.

1, you can contact other institutions, local science and technology bureau, intellectual property office or related industry organizations and ask if they can provide you with help and support.

If you can't get the help you need through the school or local government agencies, you can consider finding other ways.