Solid state physics; Properties of matter 268 Intellectual property 201 Dissertations, Academic (Ph.D) 92 Plasma physics; Properties of matter 90 Soil science 77 Intellectual property (International law) 73 Intellectual property rights 65 Agricultural chemistry 53 Thesis (Ph.D)-Physics 50 Copyright 47 Electric properties 47 Law and legislation 46 Nanostructured materials 46 Cultural property 43 Nanotechnology 43 Law 41 Polymers 40 Property 40 Intellectual Property 39 Foreign trade regulation 34 Physics 32 Soil Science and Agricultural Chemistry 32 History 31 Right of property 30 Thin films 30 Biotechnology 29 Economics 29 Chemistry 27 Materials 27 Optical properties 27