{"id":4923,"date":"2022-08-04T09:39:04","date_gmt":"2022-08-04T09:39:04","guid":{"rendered":"https:\/\/pruefer.eu\/extension-and-validation-states\/"},"modified":"2026-06-09T08:24:13","modified_gmt":"2026-06-09T08:24:13","slug":"extension-and-validation-states","status":"publish","type":"page","link":"https:\/\/pruefer.eu\/en\/news-knowledge\/infocenter\/extension-and-validation-states\/","title":{"rendered":"Extension and validation states"},"content":{"rendered":"\n\n\n\n
\n
\n
\n \n \n
\n
\n\n \n \n
\n <\/div>\n \n\n <\/div>\n \n <\/div>\n \n <\/div>\n \n <\/div>\n<\/section>\n\n\n\n\n\n\n\n
\n
\n
\n \n

Extension States and Validation States<\/h1>\n
<\/div>\n

Granted EP patents may gain protection in specified countries that are no member states of the European Patent Convention (EPC). These countries recognize the grant of the EP patent without separate substantive examination by their national Patent Office.<\/p>\n

Basically, applicant’s selection of countries and the required corresponding fee payment must be made within the same deadline applying to the designation fee payment for EPC member states. After expiry of this period, the fee(s) may still be paid with a surcharge of 50% within a grace period of 2 months in order to effectively designate extension\/validation states.<\/p>\n

Following countries are available for EP patents, provided that their basic application date, i.e.:<\/p>\n