中文摘要：

本文以Ozman M.提出的专利技术复杂度测度方法为基础,使用中国发明专利数据计算了三十个技术领域的宽度与深度,并与Ozman M.使用欧洲专利数据的计算结果进行了对比,从中发现各技术领域的技术复杂度在中国和欧洲表现出了趋同特性。电信领域前二十家公司在中国和欧洲的技术复杂度差异较大。日本电信类公司较美国和欧洲电信类公司拥有更高的技术宽度和深度,说明日本电信类公司拥有更复杂的专利技术。

英文摘要：

Based on the measurement of patent complexity proposed by Ozman M.,the breadth and depth of 30 technology fields are analyzed by using Chinese invention patent data.The result is compared with the result of Ozman who analyzes the European patents.It is proved that the complexity of technology fields in both China and Europe are similar.The complexity of top 20 telecommunication corporations in China significantly differs with that in Europe.Japanese telecommunication corporations own greater technology breadth and depth than U.S.and European telecommunication corporations do,it is suggested that Japanese telecommunication corporations own more complex patents.