It’s not a bad sentence. The subject is the product, the predicate is the system, the object is the product, and the rest are used to modify the object. The simplified version is that the product is the product. It is awkward to read because this is obtained directly according to the patented method. This statement is rather strange. If I say that this product is a high-tech product, you may think it is normal. But in fact, the structure of the two is the same, but the statement in this sentence is based on the patent law. According to the Products directly obtained by a patented method are protected by the patent and fall within the scope of the patent.