As a representative enterprise of domestic large-scale machinery industry, Du Zhong focuses on improving its independent innovation ability through introduction, absorption and re-creation, and realizing the transformation from "Made in China" to "Created in China". The patented product of "hot coil box" is the key equipment in the first ASP short-flow production line with independent intellectual property rights in China. On the basis of digesting and absorbing foreign advanced technology, it has effectively solved the bottleneck problem of "high capital investment, large temperature difference between the head and tail of embryo and unstable quality" which has long plagued the metallurgical industry, with remarkable social and economic benefits. In addition, new technologies and products such as "new coreless coiling device" and "coreless coiling hot box" also have the characteristics of high starting point, good quality and the level of the same industry in the world.
In order to improve the core competitiveness of enterprises and the product capability of independent intellectual property rights, Zhong Er has implemented the incentive system of patent application and established the evaluation system of patent ownership on the basis of strengthening learning and understanding. Five first-level evaluation indexes and 33 second-level evaluation indexes are set up from the aspects of technical contribution, market contribution, economic contribution, strategic contribution and the utilization effect of patent system and function, and the possible benefits of a technology patent application to enterprises are quantitatively evaluated, and the reward level is recommended according to the results, which has received good results. At present, Zhong Er Group owns more than 50 patented technologies. Although it is not much compared with the enterprise scale, the patent level and application rate are very high.