Chinese Journal of Tissue Engineering Research ›› 2023, Vol. 27 ›› Issue (14): 2229-2233.doi: 10.12307/2023.401

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Application of patent literature in the study of allogenic demineralized bone matrix

Song Kunxiu1, 2, Wang Limin3, Ma Rongxing1, Hu Yongcheng4   

  1. 1Tianjin Medical University, Tianjin 300070, China; 2Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong Province, China; 3Beijing Wonderful Medical Biomaterials Co., Ltd., Beijing 101100, China; 4Department of Bone Oncology, Tianjin Hospital, Tianjin 300211, China
  • Received:2022-05-18 Accepted:2022-07-09 Online:2023-05-18 Published:2022-09-30
  • Contact: Hu Yongcheng, Professor, Doctoral supervisor, Department of Bone Oncology, Tianjin Hospital, Tianjin 300211, China
  • About author:Song Kunxiu, MD candidate, Tianjin Medical University, Tianjin 300070, China; Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong Province, China

Abstract: BACKGROUND: Patent is an important part of intellectual property with high technology content and the utilization of patent documents plays an important role in many aspects.
OBJECTIVE: To summarize the retrieval methods of common patent websites at home and abroad and study the application of patent retrieval in clinical and scientific research, so as to guide clinical researchers to increase the utilization of patent documents.
METHODS: This study detailed the historical development and classification of patents and the characteristics and retrieval methods of six patent retrieval systems commonly used at home and abroad, i.e., Espacenet, USPTO, Free Patents Online, Derwent Innovation Index, CNIPA, and CNIPR. Taking “demineralized bone matrix” as an example, the retrieval methods of patents were displayed and the retrieval results were compared and analyzed.
RESULTS AND CONCLUSION: The latest information on demineralized bone matrix can be obtained by the retrieval of patent literature, which is more accurate and novel than other literature. In the six commonly used patent search systems, Espacenet contains a wide range of patents, and the advanced search method is simple, effective and easy to master. CNIPA is conducive to tracking the latest patents in a certain technical field. Different patent retrieval systems have different retrieval rules; therefore, it is necessary to input search words for retrieval according to the standard expression form of patent information in each database. The combination of classification codes and search words can improve retrieval efficiency. By making full use of the management functions of some patent retrieval systems, we can keep abreast of domestic and foreign patent information, track the latest scientific achievements, and serve scientific research and technological innovation.

Key words: patent, patent analysis, patent retrieval, demineralized bone matrix, allogeneic bone, bone repair material

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