A has a patented product A. B manufactured the patented product A without A's permission and sold it to C. C purchased it and used it in the manufacture of another product B.

1. A patent technology licensing contract can be signed through negotiation; or it can be resolved through litigation, requiring the infringement to be stopped and compensation for losses

2. The law has clear provisions on compensation for losses in patent infringement cases. , it is difficult to determine based on the loss of the right holder, and it is difficult to determine based on the illegal income of the infringer. The court will determine the amount between 10,000 and 1 million based on the type of patent right, the nature of the infringement, etc. Since the amount of compensation requested involves the payment and liability of the lawsuit, it is recommended to determine it based on the infringer's business size, operating conditions, execution capabilities, etc. comprehensive judgment.