At 9:30 on March 23, 2021, our company was sued by Shandong Lanbeisite Teaching-equipment Group Stock Co.,ltd. for infringement of its utility model patent, and the trial was held in Shenzhen Intermediate People's Court. After nearly 5 hours of cross-examination and debate, the presiding judge announced "... before the relevant test results come out, whether the alleged infringing product in this case falls within the protection scope of claim 9 of the patent involved cannot be ascertained. Regarding this part of the content, The two parties will have a court debate after the test results come out...".