There three types of patent in China, Patent for Invention, Patent for Utility Models and Patent for .
举一反三
- The difference between an invention patent and a utility model patent is (). A: Invention must be the proposal and innovation of new methods B: The utility model must be a product with shape and structure C: The creative requirements of utility model patents are lower than invention patents D: Some products cannot declare utility model patents
- Which tools can be used to search patent? A: Espacenet patent search B: WIPO Patentscope C: CNIPA patent search and analysis D: USPTO patent search
- Once a patent expires， an invention becomes common property and can then be freely used by anyone。（ ）
- Choose the answer(s) that best describe(s) the differences between patented technology and know-how. A: Know-how is protected by keeping it confidential while patent is disclosed as per law B: Patent has a clear period of legal protection in certain regions whereas know-how hasn't been applied for patent and is not protected by law C: Scope of know-how is wider than that of patent D: All of the three above
- What is one of the characteristics of a patent?