国内外氯化法钛白粉生产技术的专利分布概况

为了解氯化法钛白粉相关生产技术的知识产权环境，降低企业知识产权风险，采用Innography专利分析平台对国内外氯化法钛白粉生产技术的专利申请进行了统计分析，并重点介绍了该技术在中国的相关专利布局情况。经研究分析发现：氯化法钛白粉生产技术的相关专利申请主要分布在美国、日本、德国、英国和中国；美国杜邦公司在氯化法钛白粉生产工艺的专利技术上有明显的优势；在中国，攀钢集团锦州钛业有限公司在氯化法钛白粉生产技术方面已形成相对完整的专利布局。最后，结合国内情况，给拟发展氯化法钛白粉的企业提出一些参考意见。

Worldwide patent distribution of titanium dioxide by chlorination process

In order to grasp the intellectual property environment of titanium dioxide production technology by chlorination process，and to reduce the risk of patent infringement，a statistical analysis for the related patents in worldwide of the production technology of titanium dioxide by chlorination process  was made by Innography.The distribution of this technology in China′s patents was emphatically introduced.The analysis found that: the related patent applications of the production technology of titanium dioxide by chlorination process were mainly distributed in the United States，Japan，Germany，the UK，and China；DuPont had obvious advantages in this field；In China，Pangang Group Jinzhou Titanium Industry Co.，Ltd. had the most rounded patents in this field.Finally，according to the situation of China，some suggestions were given to those enterprises which will get into the industry of titanium dioxide by chlorination process.