Patent No is the abbreviation of patent number, which is a series of unique numerical symbols specially used to identify a patent text. Whenever a patent is approved, a patent number will be assigned to it. Patent number usually includes two parts: a domestic number and a CN prefix, EP prefix, US prefix or other similar prefixes. Patent number can help patent applicants and professionals quickly identify a patent, and then understand the content, nature and scope of the patent.
For patent holders, the patent number is the basis of patent information. They can use the patent number to check the status of their patents, past litigation records and other related information. For professionals, the patent number is also the basis of their practice. Searching the patent number can help them understand the direction of technological development, check the differences and defects existing in the existing technology, and provide inspiration for studying future technological innovation.
When using patent numbers, we should pay attention to the standards in different intellectual property areas. Some intellectual property areas may use different prefixes to represent different types of patents, such as PCT and EP patents. In addition, for a patent application, its domestic number may be different from that of other countries. Therefore, when using patent number to search patents, we must understand the format and elements of patent numbers in different countries or regions to ensure accuracy and consistency.