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基于专利大数据,对中美两国页岩气专利进行定量分析。研究表明:技术构成的复杂性和积累性是该领域的技术特征。专利地图分析结果表明:中国在页岩气领域尚存在大量的技术空白,而美国在该领域已形成完备的技术体系。美国企业开始在中国大量申请专利,已成为中国页岩气专利的重要持有者,对此必须高度警惕。
Based on patent big data, quantitative analysis of shale gas patents in China and the United States was conducted. The research shows that the complexity and accumulation of technical composition are the technical characteristics in this field. Patent map analysis shows that there are still plenty of technical gaps in the shale gas field in China, and the United States has formed a complete technical system in this field. U.S. companies have started to apply for patents in large quantities in China and have become important holders of shale gas patents in China. Therefore, they must be highly vigilant.