Table 3.
Expiry dates of basic patents on entecavir in selected countries
| Country | Number | Expiry date | Status |
|---|---|---|---|
| US | US5206244 | 21 February 2015* | Invalidated |
| UK | EP0481754 | 15 April 2017*† | Extension in force |
| France | EP0481754 | 1 April 2017* | Extension in force |
| Germany | EP0481754 | 16 April 2017*† | Extension in force |
| India | 213457 | 2 July 2022‡ | Unclear |
| China | CN1030916 | 20 November 2011 | Expired |
| Brazil | PP 1100846-6 B1 | 18 October 2010 | Expired |
| South Africa | 1991/07894 | 2011‡ | Expired |
References for patents and term extensions can be found in Appendix 2
*
Expiry date of extended patent term
†
Date shown assumes granting of 6-month paediatric extensions, requests for which have been filed with the European Patent Office
‡
Expiry date estimated as 20 years after filing