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Hengbo Acted for Chengdu GT-JG Science and Technology Co.,Ltd. Successfully Invalidating Tangyuan Electric's Patent- Device for Monitoring Pantograph Slide
 Last update:2020-02-25  browse:79second

On January 23, 2020, the China National Intellectual Property Administration (CNIPA) issued an invalidation decision No. 43195, declaring that all patent rights of utility model, entitled "device for monitoring pantograph slide", owned by Chengdu Tangyuan Electric Co., Ltd. were invalid (The picture is for reference only and has nothing to do with the above patent).

On August 21, 2019, the Hengbo team accepted the client's entrustment and conducted a large number of searches on prior arts related to the above patent. It was found that there were prior arts in patent literature similar to the patent involved, based on which, a request for invalidation was filed. After nearly six months of trial, CNIPA finally made a decision to declare the patent in entirety invalid.

According to the law, the patentee, who is dissatisfied with the invalidation decision, can file an administrative lawsuit request with the Beijing Intellectual Property Court within three months.

The specific content of the invalidation decision can be found in the Annex: Invalidation Decision No. 43195.

Invalidation Decision No. 43195