Nanotechnology, like 3D printing, is one of the richest fields in research and progress in the past few years. Two Photon Polymerization (TPP) technology allows the 3D printing of nanoscale objects, so the nanoscale additive manufacturing has been no longer the thing in the future. This research investigates related US patent documents through the claim-based approach. By virtue of systematic analysis of the claims of patent documents, we can explicitly define technical features of patent document and the accurate patent classification, monitor the direction of enterprises' patent application portfolio and effectively grasp the trend of technological development of important manufacturers related to this technology. Also, we can thoroughly understand the feasible emerging technology and opportunities for market application for enterprises in technological development and strategic planning. 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. 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 watersoluble initiators are particularly needed to increase its resolution and will be the direction of emerging technology in this domain.
Nanostructure is necessary for the existing industrial application, future development of technology or manufacturing of advanced products. Regarding the requirements of industrial technology on large area and pattern refinement, the bottleneck of lithography technique is also the key to development. The mask-less laser interference lithography can produce large area exposure and define periodic nanoscale surface pattern in the spatially periodic manner to effectively lower the cost. This research investigates related US patent documents and the findings of patent review in this research show the structure architecture of this technique has different forms, and the beam splitter architecture has advantages and application potentials on the extensive requirements of complex periodic structure. The current and future development aims at improving the system's precision and stability and improving and expanding the system device to meet the requirements' of market commercialization. We will keep improving the precision of interference lithography to avoid the defocus of high-density line width. It's particularly suitable for the micro nanofluid device in the emerging bionanotechnology to observe fluid behavior at the minimum scale.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.