斯南普吉提公司尿素生产技术专利布局分析及启示

Analysis on Snamprogetti’s Urea Patents Layout and Its Implications

近年来,尿素生产技术的研发在我国日益升温。斯南普吉提公司是全球尿素生产技术的主要专利商之一,在氨汽提法尿素生产技术领域占有重要地位。文章对斯南普吉提公司尿素生产技术专利信息进行了分析,对其相关专利目前在中国的保护情况进行了介绍,指出了该公司专利申请的若干特点,具体包括:基本专利保护力度大;欧美与日本是专利布局的重点地区;半数以上的专利处于失效状态;尿素合成工艺为专利申请重点;氨汽提尿素合成基本专利多,有效专利少;以单独申请为主等。通过分析,得出我国生产企业应做好知识产权跟踪监测以防范侵权风险,充分利用失效专利,以及重视核心工艺改进,研发突破性的基础性发明等启示。

In recent years, the R&D on the urea production technology in our country is rising. Snamprogetti which plays an important role in the ammonia stripping urea production field is one of the global urea production technology licensor. This paper analyzed Snamprogetti’s patent information about the urea production technology, introduced the protection situation of related patent in China and pointed out some features about its patent application including the high basic patents protection strength, the key areas of the patent layout like Europe, U.S. and Japan, more than half invalid patents, urea synthesization being the key of patent application, more basis patents than invalid ones for ammonia stripping urea synthesization, and dominance by single application, etc. Through the analysis, it was concluded that the urea production company in our country should strengthen intellectual property monitoring in order to prevent infringement risk, make full use of the invalid patents, pay attention to core technology improvement, and make breakthrough in basic inventions.