What's the difference between patent ink cartridges and lead ink cartridges?

Patent ink cartridges refer to ink cartridges with independent intellectual property rights. The faucet ink cartridge refers to the ink cartridge in which the nozzle and the ink cartridge are connected into a whole, that is, the integrated ink cartridge. (For example, HP and Lexmark mostly use integrated ink cartridges). In fact, there is no fundamental connection between the two, one refers to the classification of brands and the other refers to the classification of ink cartridges. Ha ha!