BACKGROUND The TPP technology is a "nano-optics" 3D printing technology that develops in recent years. Compared with the traditional 3D printing technology, the TPP-3DP technique that takes near-infrared light femtosecond pulse laser as the light source can break through the limitation of optical diffraction and manufacture nanoscale 3D structures in arbitrary shapes with high resolution. METHOD The research develops a claim-based patent analysis method to identify technical features via the analysis of claim, especially the analysis of plural elements of independent claim. Furthermore, we analyze the subject matters and technical features of claims through claim-base analytical method to observe the patent trend of competitors and understand the current situation of competitors' technical distribution in related industries, in order to provide useful information for enterprises to determine R&D strategies. RESULTS The result shows 3M Company possesses numerous patent portfolios that base on the diversified innovative applications of TPP technology. Nanoscribe Company has a long-term advantage in monopolizing this technology. The patents in TPP-3DP field can be grouped into five categories relating to application, including micro-optics device, photonic crystal, biomedical, microfluidics and MEMS. CONCLUSION The findings of this review confirm the TPP-based 3D printing (TPP-3DP) technology has broad application prospects, of which the hydrogel material applied in tissue engineering and drug delivery is the future trend. Highly-initiated water-soluble initiators are particularly needed to increase its resolution and will be the direction of emerging technology in this domain.

中文翻译：

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发现使用基于声明的方法生产3D纳米结构的双光子聚合技术的专利格局。

背景技术TPP技术是近年来发展的“纳米光学” 3D打印技术。与传统的3D打印技术相比，以近红外飞秒脉冲激光为光源的TPP-3DP技术可以突破光学衍射的局限性，可以高分辨率制造任意形状的纳米级3D结构。方法该研究开发了一种基于权利要求的专利分析方法，以通过对权利要求的分析，尤其是对独立权利要求的多个要素的分析来识别技术特征。此外，我们通过基于权利要求的分析方法来分析索赔的主题和技术特征，以观察竞争对手的专利趋势，了解竞争对手在相关行业中的技术分布状况，为企业确定研发策略提供有用的信息。结果结果表明3M公司拥有大量基于TPP技术创新应用的专利组合。Nanoscribe公司在独占这项技术方面具有长期优势。TPP-3DP领域的专利可分为与应用相关的五类，包括微光学器件，光子晶体，生物医学，微流体和MEMS。结论这篇综述的结果证实了基于TPP的3D打印（TPP-3DP）技术具有广阔的应用前景，其中在组织工程和药物输送中应用的水凝胶材料是未来的趋势。