Applying for an invention patent will reveal the secret.

It is useless for this possibility to exist, but it is very unlikely, in theory. First of all, the person who may apply for this patent is an insider, and you have leaked your plan to others; Secondly, others will basically not get this technical solution. Even if there is, it will not know its value, so it is difficult to apply. Thirdly, the provincial bureau has the obligation of confidentiality. If the leak is caused by the provincial bureau, the provincial bureau can be sued for administrative proceedings.