2026-10-13T13:39:23Z https://www.scidb.cn/oai

10.57760/sciencedb.j00133.00293 2023-11-10T15:55:00Z

2023-11-10 Technology opportunity identification data set based on semantic analysis of invalidated patent and multi-dimensional technology innovation map doi:10.57760/sciencedb.j00133.00293 en 支持数据：[1] 煤矿除尘技术相关专利1291项。[2] 筛选了779项与煤矿除尘技术高度相关的发明专利。[3] 专利技术趋势分析的统计结果。[4] SAO结构提取结果391项专利。[5] 403项与细菌控制问题有关的专利指标的结果。[6] SAO核心无效专利的提取结果。 Technical opportunity identification; Invalid Patent; SAO semantic analysis; multi-dimensional technology innovation map wu xuan RESTRICTED dataset Science Data Bank