CAS databases cover patents from 109 patent authorities around the world.
All patent records from the following nine major patent offices which meet CAS selection criteria are available online in CAplus℠ within two days of the patents' issuance and Concepts and Specific substances indexed by CAS scientists in less than 27 days from the date of issue. Patents will undergo further indexing for specialized content, such as Markush structures, reactions, formulations, and bioactivity data.
- Canadian Intellectual Property Office (CIPO)
- European Patent Office (EPO)
- French Patent Office (INPI - Institut National de la Propriete Industrielle)
- German Patent Office (DPMA)
- Japanese Patent Office (JPO)
- Russian Patent Office (ROSPATENT - Russian Agency for Patents and Trademarks)
- United Kingdom Intellectual Property Office (UK-IPO)
- United States Patent and Trademark Office (USPTO)
- World Intellectual Property Organization (WIPO)