A Study on Development Trend of Solid Lubrication Technology from Patent Analysis Perspective

doi:10.11871/jfdc.issn.2096-742X.2023.04.005

Abstract

Abstract:

[Objective] This paper aims to analyze the development trend and technological evolution path of solid lubrication technology by utilizing the patent analysis method. According to the results, the recommendations for technological innovations in solid lubrication in China are made. [Methods] In this paper, the data from incoPat are used to analyze the trend of global solid lubrication technology patent application, main technology categories, major patent applicants and inventors, and the important patents. [Results] The results shows that the amount of applications increased dramatically between 2013 and 2021. The patents mainly focus on methods for processing of bearing components, modification of lubricating composition, and lubricating composites, etc. Furthermore, the number of invention patents in China is 3935, which accounts for 73.5% of the world’s total. Chinese Academy of Sciences ranks the first based on the patent applications’ number. [Conclusions] China has the most patents in the solid lubrication technology field, while facing some challenges in patent value and key patents, which means the amount of Chinese patents with high value is not large. Thus, the research recommends that it is essential to promote industry-university-institute cooperation and improve the R&D quality. Moreover, more attention should be paid on intellectual property protection and active oversea layout.

Key words: solid lubrication technology, solid lubricating material, patent analysis, development trend

DONG Jinxin, WAN Yong. A Study on Development Trend of Solid Lubrication Technology from Patent Analysis Perspective[J]. Frontiers of Data and Computing, 2023, 5(4): 48-56, https://cstr.cn/32002.14.jfdc.CN10-1649/TP.2023.04.005.

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IPC分类号（大组）	申请量（项）	分类号含义	近3年申请量占比（%）
F16C33	1713	轴承零件；制造轴承或其零件的特殊方法	36.3
C10N30	572	用赋予润滑组合物特性的添加剂改进特定的物理性能或化学性能，如多功能的添加剂	24.0
C10M169	440	以润滑组合物的基料、增稠剂或添加剂中至少选择两类成分的混合物作组分为特征的润滑组合物	20.5
C10N50	409	被润滑的材料上所用润滑剂的形态	18.6
C10N40	401	润滑组合物的特定用途或应用	16.2
C23C14	331	通过覆层形成材料的真空蒸发、溅射或离子注入进行镀覆	38.7
C09D7	325	C09D5/00中不包括的涂料成分特征；混合涂料多种组分的方法	40.9
C08K3	314	使用无机物质作为混合配料	42.7
C10M125	261	以添加剂是无机材料为特征的润滑组合物	13.8
C22C1	259	有色金属合金的制造	34.7

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