| 高 楠,赵蕴华.专利视角下的中美航空发动机技术比较研究[J].全球科技经济瞭望,2021,36(3):51~58,67 |
| 专利视角下的中美航空发动机技术比较研究 |
| A Comparative Study of Aeroengine in China and the United States Based on Patent Perspective |
| 投稿时间：2021-01-17 |
| DOI：10.3772/j.issn.1009-8623.2021.03.009 |
| 中文关键词: 中美；专利分析；航空发动机 |
| 英文关键词: China and the United States; patent analysis; aeroengine |
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| 摘要点击次数: 1539 |
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| 中文摘要: |
| 本文对德温特数据库中收录的航空发动机领域专利数据进行分析，从时间布局、空间布局、内容布局和创新主体4个方面全面对比了中美两国在该领域的全球专利布局和竞争态势。研究发现：（1）从时间布局看，中美的技术生命周期都可划分为3个阶段，早期均经历了较长时间的专利申请量缓慢增长阶段，现均处于蓬勃发展阶段；（2）从空间布局看，中美两国都优先关注国内市场的专利布局，在此基础上兼顾国际市场的专利布局，其中，加拿大、日本、法国、英国是中美两国共同关注的国际市场；（3）从内容布局看，中美两国排名前10位的IPC小类都集中在F02K、F01D和F02C，排名前10位的德温特手工代码多集中在Q52-A类，包括Q52-A03、Q52-A02和Q52-A01C；（4）从创新主体看，中国国内的航空发动机市场竞争激烈，主体市场被海外竞争机构占据，尤其是美国近几年积极在中国市场进行专利布局，而美国航空发动机领域国内市场仍被美国本土创新机构牢牢把握。 |
| 英文摘要: |
| Based on the analysis of patent data in aeroengine field included in the Derwent Innovation Index database, this paper compares the global patent layout and competition situation in this field between China and the United States in the following four aspects: time layout, space layout, content layout and innovation subject. The study has found four points: (1) From the perspective of time layout, the technology life cycles of China and the United States can be divided into three stages. Both of the two countries have experienced a relatively long period of slow growth in patent applications in the early stage, and they are now in a stage of vigorous development. (2) In terms of spatial layout, both China and the United States give priority to the domestic market, on this basis, taking into account the patent layout of the international market. Besides, Canada, Japan, France and the United Kingdom are the international markets that both two countries pay attention to. (3) From the content layout, the top 10 IPC categories in China and the United States are both concentrated in F02K, F01D and F02C, while the top 10 Derwent manual codes are mostly concentrated in the Q52-A category, including Q52-A03, Q52-A02 and Q52 -A01C. (4) From the perspective of innovation subjects, the domestic aeroengine market is fiercely competitive, and the main market of China is occupied by overseas competition agencies. In particular for the United States, it has actively deployed patents in the Chinese market in recent years, while the domestic market in aeroengine field of the United States is still firmly held by American indigenous innovation institutions. |
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