The patent number has the prescribed format. The format of China patent number is 2003. 10.0 1. Up to now, the numbering rules are: application year (4 digits)+patent application type (1 digit)+application sequence number (7 digits)+computer check digit (1 digit), for example, 200765438. In addition, the number of patent applications before June 65438+1 October1in 2003 was double digits, such as 86 100 156.
Patent application type: 1= invention patent, 2= utility model, 3= design, 8= China national phase PCT invention patent, 9= China national phase PCT utility model.
Neither of your two patent numbers can be found on the patent search website. The last digit of the patent number is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and X, and there is no L.