Does the sale of toothbrush and toothpaste have to have a patent number?
You don't have to have a patent number to sell toothbrushes and toothpaste. Toothbrush toothpaste is not an invention, so there is no way to apply for a patent number, and it is not necessary to apply for a patent number. A normal business license is enough. Therefore, it is not necessary to have a patent number for toothbrush and toothpaste sales. The patent number is the number given when the patent right is granted, and it is a submission number.