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7.
3D SYSTEMS公司主要打印材料的专利数量分布
.