3D打印巨头3D SYSTEMS公司专利态势分析
刘艳丽1,2,*(
),何微3,吴鸣1
),何微3,吴鸣1
Patent Trend Analysis for 3D SYSTEMS
Yanli Liu1,2,*(),Wei He3,Ming Wu1
),Wei He3,Ming Wu1
图13. 选择性激光烧结技术专利数量随年代变化趋势
.
