According to C's lawsuit, the product was invented by C and has applied for a patent in the Patent Office, so C is the patentee of the product.
Of course, not much about the trial.
Final result: As A and B collected enough evidence to prove that C maliciously seized the fruits of others' labor, the Patent Office finally ruled that C's patent application was invalid. At the same time, A applied to the Patent Office for a patent through his guardian B, and was approved, and finally signed a patent transfer agreement with D, and C was punished for allegedly encroaching on other people's labor achievements.
At present, regarding the intellectual achievements of minors, the national laws clearly stipulate that the legitimate rights and interests of citizens are protected by law. No matter whether they are adults or not, the patent achievements of minors are enjoyed by minors, but their civil capacity is limited. Therefore, after reaching an agreement with minors, their guardians will sign relevant agreements with enterprises, and both parties will enjoy the fruits. A third party has no right to interfere. If the intellectual achievements (patents) of minors are infringed by illegal means, the court will punish them according to law. If losses are caused, minors and their guardians have the right to file a civil lawsuit for compensation.