The invalidation declaration case involved the no. 201220262213.8 utility model patent, named “A Type of Thick Corrugated Cardboard Pressing Mold for Transformer”, which was granted by the State Intellectual Property Office on January 2nd 2013. It was applied on June 5th 2012 and involved the patent owner Taizhou Xinyuan Electrical Equipment Co., Ltd. 

Our Company accepted the commission of the invalidation applicant Taizhou Weideman High Voltage Insulation Co., Ltd., who conducted invalidation inquiry and selected three papers of similar patent technique as invalidation evidence. It requested for the declaration that the aforementioned patent was not in compliance with the innovation described in article 22 paragraph 3 of the Patent Law. 

In the invalidation facts and reasons, the agents conducted thorough study on the involved patent and current technical methods. They divided the methods into several technical characteristics and conducted close comparison between the characteristics. 

Since the materials for the invalidation declaration request were fully prepared and sufficient evidence was provided during the oral trialing process, the Patent Reexamination Board accepted the arguments of the invalidation declaration applicant. The Board made the “Invalidation Declaration Request Evaluation Decision” on January 3rd 2014 and declared invalidation for all of the patent rights of the aforementioned patent.