Yellow Tungsten Oxide Applied for Smart Glass Window

Yellow tungsten oxide, or tungsten trioxide, is an important material for the preparation of an electrochromic layer of a smart glass window. With the gradual advancement of building energy conservation policies, energy-saving glass such as tungsten oxide electrochromic glass will be more and more widely used in the future.

More details, please visit:
http://www.tungsten-powder.com/tungsten-oxide.html

However, what should be noted is that the electrochromic glass technology has high barriers. Patent technology is mainly controlled by foreign companies. In recent years, electrochromic technology has become a hot topic in domestic and foreign research, but the core technology is mainly in the hands of foreign companies. After searching for the patents related to electrochromic glass, analyzing the number of patent applications, the applicant's ownership unit and the type of patent, we can further understand its development status. According to the number of patent applications related to electrochromic glass, the number of patent applications in 2015, 2013 and 2012 was the highest, 641, 612 and 547 respectively, accounting for 9.482%, 9.053% and 8.092% of the patents analyzed. The number of patent applicants in the country is mainly in the United States, Japan, and China, with 2,102, 1,832, and 1,233, respectively, accounting for 31.095%, 27.101%, and 18.24% of the patents analyzed.

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