Observing development of diamond industry from perspective of patent application

As the hardest substance known in the world, diamond is an important function material with special optic, electric, thermal and acoustic properties, and widely used in industry. This paper is based on the statistics on the patent applications of diamond materials and products, where in the analysis of the patent application situation is made from the viewpoints of age, technology and geographical distribution. The results reveal that the diamond application situation is closely related to the development and evolution of the industry pattern, and that the characteristics of the patent application situation in different stages are highly consistent with those of the industrial development specialties. Finally, from the perspective of the evolution of the patent application situation,some suggestions related to industry development are given.