It is the wish of many individual inventors to turn patents into products, especially into products popular in the market. However, the reality is cruel. Owning a patent may not necessarily translate into economic benefits. Throughout the patent library in China, we can see how many patents are lying quietly in the file cover and on the hard disk, either abandoned by the patentee for free or until the patent expires without any return. Edison is the most famous person who combined technical inventions with commercial patents well. Tesla was planted by Edison in those years. Nowadays, many people think Edison is unkind, but judging from how many depressed inventors in modern times can't change products with patents, Edison is actually a man who knows technology and can do business.