Effective design knowledge abstraction from Chinese patents based on a meta-model of the patent design knowledge graph

Patent document is one of the most important sources of knowledge for engineering design. Design for patentability has become increasingly important for the success of product in the competitive market. However, language differences hinder the effective extraction of design knowledge from patent databases of different countries using existing patent analysis methods. This paper proposes a new approach to build the patent design knowledge graph to extract useful design information from Chinese patent texts by using natural language processing techniques. A meta-model of the patent design knowledge graph is built based on the language characteristics of Chinese. The proposed method is verified using randomly selected patent text for the effective extraction of Chinese patent design knowledge. The feasibility of the proposed method is further tested to support design of a new storage device for the patentability.(c) 2022 Elsevier B.V. All rights reserved.