Its sales purpose is to give the patentee the promised sales right, and its purpose is to stop the infringement in time at the early stage of commercial transactions, to stifle the infringement at the stage of "possible infringement" or "imminent infringement", to prevent the spread of patented infringing products in the future, and thus to reduce the losses of the patentee.
Extended data:
The difference between promised sales and sales is that promised sales are just an offer or invitation to offer, while sales are the transfer of property rights. The process of sales is generally that the two parties reach an agreement, pay the price and deliver the goods, while the promise of sales is only to provide the meaning of sales. Neither an offer nor an invitation to offer constitutes a sales act.
Without the permission of the patentee, the actor commits the act of promising to sell without authorization, which constitutes patent infringement. Article 11 of China's Patent Law lists promised sales as patent infringement, and its most direct significance lies in giving the patentee the right to stop patent infringement at an early stage so as not to cause greater losses to the patentee.
Baidu encyclopedia-provide sales