What are Kind Codes?
- First, the country code, which is two characters. For the United States, it is US.
- Second, the patent/publication number. Patent applications will include the publication year before the application number.
- Third, the WIPO Standard ST 16 kind code.
In compliance with WIPO Standard ST 16, the publication codes can be viewed at the following link: https://www.wipo.int/patentscope/en/data/kind_codes.html