On January 3, 2019, the China National Intellectual Property Administration (hereinafter referred as CNIPA) issued an invalidation decision No. 38494, declaring that patent rights of utility model, entitled "Baby carriage and seat combining mechanism for the same", which were owned by Wonderland Nurserygoods Co.,Ltd. were partially invalid . At this point, all the key claims that the claimant requested for invalidation have been invalidated.

On May 30, 2018, the Hengbo team accepted the client's commission. Through a large number of searches, the Hengbo company finally obtained evidence that evaluates the patent's creativity and filed a request for invalidation of some of the claims of the above-mentioned patent. After seven months of trial, CNIPA finally made a decision to declare the patent partially invalid. All key claims requested for invalidation were invalidated.

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 detailed content of the invalidation decision can be found in the Annex: Invalidation Decision No. 38494.