1. Classification number
The classification number of a patent application can be found in the international patent classification table, and there is no limit to the number of characters (capital letters) entered. The classification number can be found by fuzzy method, and the fuzzy part should use the fuzzy character "%"at the beginning or middle of the classification number, and the fuzzy character can be omitted at the end of the classification number.
2. Application number (patent)
The application (patent) number consists of 8 digits. The application number can be searched by fuzzy method. When the fuzzy part is at the beginning or middle of the application number, the fuzzy character "%"should be used, and when the fuzzy character is at the end of the application number, the fuzzy character can be omitted.
3. Open day
The publicity (announcement) day consists of three parts: year, month and day, separated by dots; The year is 4 digits, and the month and day are 1 or 2 digits. Public days can be fuzzy searched. You can omit the fuzzy part directly (no fuzzy characters) and the point at the end of the string.