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
Patent Trend Analysis for 3D SYSTEMS
Yanli Liu
1,
2,
*
(
),Wei He
3
,Ming Wu
1
图1.
3D SYSTEMS公司并购史(2001–2014年)
.