生物能源领域国际相关专利分析

随着石油资源的日益枯竭，近年来生物能源技术的开发引起了全球各界的广泛重视，加之专利保护意识的增强，生物能源领域的专利数量迅速增长，对专利信息的分析可以了解生物能源技术的发展现状和趋势，为技术创新和战略发展提供参考。本文选取目前生物能源中的三种重要技术――生物乙醇、生物柴油和生物制氢技术，利用专利计量分析的方法对其发展态势进行了研究。研究内容包括：专利申请的时间分布和空间分布，被引专利情况，主要技术领域，以及重要专利权人及其相关信息，从专利分析的角度揭示近年来这三种生物能源技术的研发状况。

Study on International Patents of Bioenergy Technologies

Due to the depletion of fossil energy, bioenergy has become more and more important and the patents in this field increased rapidly in recent years. Patent information is expanding as a unique source of technical information in analyzing technology innovation, development, and strategic planning. The patent databases on the Internet and special software, offer the opportunity to patent bibliometric research. Using Derwent Innovation Index, the patents in 3 key bioenergy technical areas: biological hydrogen, bioethanol and biodiesel, during 1996~2006 were analyzed, from the following aspects: temporal and spatial distributions, patents citations, major fields, influential patent assignees, to reflect the trend and development of key bioenergy techniques.