Yes, patents are mainly to protect solutions, not products. Products are not required to apply for a patent. As long as your idea is novel, creative and practical, you can apply.
It should be noted that patent rights cannot be granted in the following situations:
(1) Inventions that violate national laws, social ethics or harm public interests. Such as drug paraphernalia, etc.
(2) Inventions that violate scientific laws. For example, a perpetual motion machine does not comply with the law of conservation of energy and cannot be patented.
(3) Scientific discovery. For example, an astronomer discovered a new star through observation; Newton discovered the law of universal gravitation, etc. These are things that exist objectively in nature and cannot be granted patent rights.
(4) Rules and methods of intellectual activities. For example, a new way to play poker or a certain chess card, etc.
(5)Diagnosis and treatment methods of diseases. For example, an old Chinese medicine doctor can diagnose some difficult-to-diagnose diseases through a special pulse signal method and treat them with acupuncture, special acupoint massage therapy, etc. These cannot be patented, but medicines that can be mass-produced for diagnosing or treating diseases, Devices and their preparation methods can be patented.
(6) Patent rights cannot be granted for new varieties of animals and plants. In our country, there are Regulations on the Protection of New Plant Varieties that are specifically designed to protect new plant varieties.
(7) Patent rights cannot be granted for substances obtained by nuclear transformation methods.