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1. Austrian Patent Office (AT).

2. Australian Patent Office (AU).

3. Canadian Intellectual Property Office (CA).

4. State Intellectual Property Office of the People’s Republic of China (CN).

5. European Patent Office (EP).

6. Spanish Patent and Trademark Office (ES).

7. National Board of Patents and Registration of Finland (FI).

8. Japan Patent Office (JP).

9. Korean Intellectual Property Office (KR).

10. Federal Service for Intellectual Property, Patents and Trademarks (Russian Federation) (RU).

11. Swedish Patent and Registration Office (SE).

12. United States Patent and Trademark Office (US).

13. Nordic Patent Institute (XN).

Note: All International Searching Authorities are also International Preliminary Examining Authorities.