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At present, he has not been accused of infringement, because your patent has not been authorized. But you can send him a lawyer's letter asking him to stop production or sales. After your patent is authorized, if he is still producing or selling, then you can sue him for infringement and demand compensation. Remarks: Before you sue him, you need to make sure: 1, whether his products infringe your patent right and whether the technical features fall into your claim. 2, whether your patent is stable, whether the other party can invalidate your patent. 3. Whether the evidence of the other party's infringement is collected is directly related to the amount of compensation in the later period.