Global Technical Distribution of Grain Combine Harvester Based on Patent Analysis
Based on patent data,we revealed the global technical distribution,research topics and competition trend of grain combine harvester technology.It provided reference for the technology mining and industrialization development of grain combine harvester in China.Based on In-coPat patent database,we analyzed the global innovation layout and competitiveness of grain combine harvester from the perspectives of patent overall layout,patent application trend,patent applicant and its research topics.The results showed that the technology of combine harvester en-tered a new round of innovation activities in recent years.The patents from China,the United States,Japan and Germany accounted for 86.95％of the total world.The gap between China and advanced technology countries in patent application narrowed.International agricultural machinery giants,such as Kubota,Iseki,Deere Company,CNH Industrial,were the main enterprises of grain combine harvester technology innovation. Great attention had been paid to the control and measurement devices of combine harvesters in China,and further research were needed to catch up with the world's advanced level in grain separation and cleaning.In addition,China's grain combine harvester innovation was facing problems like patent blockade from international agricultural machinery giants,low share of high-value patents,insufficient patents distribution overseas,and weak technological innovation competitiveness of domestic enterprises.In the future,China should take the advantage of backward-ness,and carry out patent layout with invalid patents.Furthermore,cooperation among universities,research institutions and enterprises should be strengthened to promote the transformation of technological achievements.
Combine harvesterTechnological innovationPatent analysisTechnical distribution
万方数据
维普
