How much does it cost to buy a patent? Is it expensive?

Many parents often ask how much it costs to buy a patent. Is the patent expensive? In fact, all major platforms on the Internet have some price channels for purchasing patents. Just looking at the price of the patent itself, is it necessary to measure the price of patented technology like that? You can learn from patent experience, which needs to be accumulated, and another way is through patent technical specifications and claims. There is no standard price for buying patents in the patent market. Patents may or may not be valuable. We can't generally say how much an ordinary invention patent or utility model patent can sell. It depends on what the patent is, what the market prospect is, whether it is licensed, whether it can be transformed, whether there is any right dispute, how long the patent is valid, whether the protection scope of the right claim can not be easily bypassed, and so on. This directly affects the value of the patent. Buying a patent belongs to the category of patent transfer. According to the Patent Law, if the right to apply for a patent is transferred, the parties concerned must conclude a written contract, which will take effect after it is registered and announced by the Patent Office. Written form, registration and announcement are the legal conditions for the entry into force of the patent application right transfer contract. Patent transfer contracts that are not signed in writing or registered and announced by the Patent Office are not protected by law. For patent buyers, how much a patent costs, we can compare patent technology by comparing other people's patents, or if we don't know how much it costs to buy a patent, we can also know the details of the patent market through familiar friends; Of course, when buying a patent, you need to remember that you can't think a patent is good just because it is expensive. Some junk patents can also be fired to tens of thousands or hundreds of thousands.