介绍专利法律制度中"技术特征"和可拓学中"特征"的概念,分析"特征"在专利法律制度与可拓学中的区别与联系.以"一种就座家具"的产品权利要求书为例,利用可拓学基元理论对每一项权利要求进行拆解分析,建立每个技术特征的基元模型,并进一步利用可拓创新四步法对技术特征的基元模型进行拓展与变换,最后选择出优秀的创意方案.通过对"特征"法律语言的理解与诠释,沟通可拓创新四步法在专利法律保护的渠道,拓展可拓学在市场经济发展中的运用.%The concepts of "technical features" in the legal system of patent and of "features" in the Extenics are introduced, and the differences and connections of "features" between the two are analyzed. A product invention patent claims for "the seating furniture" was used as an example. First, the Extenics Basic Element Theory was used to disassemble and analyze each product invention patent claim. Next, the basic element model of each patent technical feature was established. Then, the basic element model of each patent technical feature was expanded and transformed by the Extenics Innovation Four-step Method. Finally, the best creative program was selected. The aim of this analysis is to initiate an application of the Extenics Innovation Four-step Method in the field of legal protection through interpretation and better understanding of the "features", and thence to highly develop the utilization of Extenics in the marketing economy performance.
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