These three cases are also typical examples of how the patent invalidation request procedure influences patent infringement litigation cases. It is worth noting that the three patent infringement litigation cases in these cases were filed by the same patentee within the same time frame against the same party, based on different rights bases. The three cases are: Dispute over Infringement of Utility Model Patent Rights between Shenzhen XX Industrial Automation Equipment Co., Ltd. and Shenzhen Youxx Welding Machinery Co., Ltd., and Shenzhen Youxx Neng Machinery Co., Ltd. 

Shenzhen XX Industrial Automation Equipment Co., Ltd. (hereinafter referred to as the "plaintiff") filed separate civil lawsuits with the Shenzhen Intermediate People's Court, claiming that Shenzhen Youxx Welding Machinery Co., Ltd. and Shenzhen Youxx Neng Machinery Co., Ltd. infringed upon its three different utility model patent rights. 

After the National Intellectual Property Administration reviewed our three invalidation requests respectively, it made the Decision on Invalidation of Patent Claims No. 38280 regarding the utility model patent with the title "Welding Device" filed by the plaintiff, declaring the patent rights completely invalid; it made the Decision on Invalidation of Patent Claims No. 38397 regarding the utility model patent with the title "Line-Through Plastic Mailbox Processing Equipment" filed by the plaintiff, declaring the patent rights completely invalid; and it made the Decision on Invalidation of Patent Claims No. 38934 regarding the utility model patent with the title "Cutting Device" filed by the plaintiff, declaring the patent rights partially invalid. That is: among the three utility model patent rights involved in these three cases, two were declared completely invalid, and one was declared partially valid. 

The defendant then filed separate withdrawal applications for the three cases with the Shenzhen Intermediate People's Court. The Shenzhen Intermediate People's Court lawfully granted the withdrawal requests and ordered the plaintiff to bear all the case handling fees. 

These three cases are also typical examples of how the patent invalidation request procedure influences patent infringement litigation cases. It is worth noting that the patent infringement litigation cases in these three cases were initiated by the same patentee within the same period of time against the same party, based on different legal grounds.