Is it illegal to fabricate patent specifications?

The person who wrote the instructions was not suspected of violating the rules.

Let's just say. Who is going to apply for a patent in the dispute between you and the company, then you can ask the court to make a ruling to confirm who is the real obligee.

If the company has applied for a patent before confirmation, it can ask China National Intellectual Property Administration to change the patent applicant after obtaining the court judgment, and take the judgment as evidence.