（1） Collect evidence of infringement and obtain sales data of the other party.

Specific methods: (1) purchase infringing products on online platforms such as jd.com, http://taobao.com and large supermarkets and notarize the purchase process;

(2) time stamp can also be selected for the website of e-commerce platform, which saves time and money cost more than notarization;

(3) after filing the lawsuit, apply for court investigation and evidence collection, obtain more comprehensive and accurate sales data, and improve the amount of compensation;

（2） After the evidence is collected, a lawyer"s letter shall be sent to the infringer to stop the infringement and compensate for the loss. Then the evidence of the other party"s continuing infringement is retained, which is conducive to proving intentional infringement and further improving the amount of compensation;

（3） If the infringing party ignores the lawyer"s letter, it will enter the litigation stage, and the proposed litigation claims include: stop infringing, compensation for losses (including lawyer"s fees, litigation costs and other rights maintenance costs).