专利申请事项（Patent application matters）.doc

专利申请事项（Patent application matters） The utility model patent before being granted only after a formal examination, some writing defects are difficult to be found, so the invalid in the stage of patent, the patent on the stability is a challenge. Written claim is a very important content in the application documents, if the claims there are defects in writing, will lead to the patent is invalid. In this paper, on the basis of two cases related to patent invalidation request, to introduce the defects existing in the composition of the claims, and draw lessons from these cases are given. For applicants, can be patented as much as possible to avoid these defects, and to avoid the legal consequences of the patent is invalid, the examiner, can better grasp the quality of examination. Case 1: The utility model patent invalid announcement request case 1 involved in the cracking device with a silicone hydrolysate in the process of cracking, cracking in the device comprises a cracking kettle is called heating coil components. From the manual background of technology introduction, the patentee believes in the existing technology with jacket structure for heating, the heating coil of the proposed structure using patent. In the part of background technology is described as the hydrolysate of pyrolysis is an endothermic process, hydrolysis need continued inhalation of large amounts of heat from the surrounding in cracking so heating structure cracking kettle must be provided with efficient, the use of most of the cracking kettle jacket structure for heating, the structure of small heat exchange area, heat transfer the efficiency is not high. The utility model patent claim two, its contents are as follows: “1、一种由裂解釜和裂解塔组合而成的裂解器，其特征是：裂解釜由釜体（3）、釜盖（8）、夹套（4），设置在釜内的加热盘管（5）及盘管固定装置（2），设置在釜内的搅拌器（6），设置在搅拌器上端的机械密封（10）及搅拌传动机构（11），分布在釜体（3）、釜盖（8）、夹套（4）上的原料进口（9）、气相出口（12）、液体出口（1）、蒸汽进口（7、13）、冷凝水出口（15、14）、测温口、测压口、放空口及观察口组成；裂解塔包括：塔体，下封头，上封头，设置在塔内的单溢流塔板、降液板及受液板，分布在塔体、上下封头上的原料气进口、气相出口、回流 The liquid te