采集了2011年以来全球铝合金增材制造相关专利数据,聚焦专利申请趋势、地域布局、重要技术分支、主要申请人及核心专利,全面挖掘铝合金增材制造领域的知识产权战略态势,为后续相关研究提供参考。研究显示,全球铝合金增材制造技术生命周期经历了萌芽期、成长期,目前正处在成熟稳定期。在地域分布上,中国、美国、欧专局位居前三名。在主要专利局之间专利流向方面,美、法、日三国专利流出量占优势,欧专局、美国、中国流入排名前三。专利热点技术分支包括铝基合金、由金属粉末制造工件或制品的增材制造方法、金属粉末及其处理、由金属粉末用压实或烧结的方法制造工件或制品。法国肯联铝业以118件专利申请位居申请人榜首,中南大学、上海交通大学分别以53件和42件位列其后。在主要申请人中,中国申请人多在中国本土集中开展申请,国外申请人则在本国以外也有相当数量的专利布局。另外,Top 5高被引用的专利中有3件来自美国、2件来自中国。
Abstract
The work systematically analyzes global patent data related to aluminum alloy additive manufacturing since 2011, with a focus on patent application trends, geographical distribution, key technical subcategories, major applicants, and core patents, to comprehensively map the intellectual property landscape and provide references for further research. The findings reveal that the technology lifecycle of aluminum alloy additive manufacturing has progressed through emergence, growth, and maturity stages. Geographically, China, the United States, and the EPO dominate patent filings. Regarding patent flows among major patent offices, the United States, France, and Japan dominate in patent outflows, while the EPO, the United States, and China rank as the top three recipients of patent inflows. Key technical clusters include alloys based on aluminium, additive manufacturing of workpieces or articles from metallic powder, metallic powder and its treatment, e.g. to facilitate working or to improve properties, manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering, apparatus specially adapted therefor. Among top applicants, France’s Constellium leads with 118 patents, followed by Central South University (53 patents) and Shanghai JiaoTong University (42 patents). Among major applicants, Chinese applicants predominantly concentrate their filings domestically, while foreign applicants maintain significant patent portfolios in non-home countries. Additionally, among the top 5 most cited patents, three originate from the United States and two from China.
关键词
铝合金 /
增材制造 /
专利信息 /
知识产权态势 /
研究现状
Key words
aluminum alloy /
additive manufacturing /
patent /
intellectual property landscape /
research status
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基金
中国冶金教育学会教育教学研究重点项目（YJJY2024007ZD）
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