Is it true that a person can only consider professional issues if he has the corresponding patent?

No, these two are not connected. Majors can only say that practice makes perfect for a certain industry, and it is almost difficult for questioners to ask questions. That's called major, or for people in other industries, this industry is more professional than other industries; Patent is a protected exclusive right owned by the inventor and creator, and it is a technical solution! Patents can only be protected by law if they apply to the patent office!