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This research proposes the use of a patent analysis methodology that can suggest promising technology in the ICT sector at the micro‐level. This approach identifies core patents from the technology field, groups them as research frontiers (RFs), and develops a visualized network based on the citing relationships to monitor the relationship among RFs. In addition, it calculates a “promising index” based on the growth potential, impact, and marketability of patents to ultimately derive promising RFs. To illustrate the proposed approach, this research presents analysis results for a chosen area, which is the user interface and user experience (UI/UX) technology field. By proposing promising technological fields at the micro‐level, the proposed methodology will serve as a useful decision‐making support tool in selecting R&D projects, technology planning, and determining technology policy direction.