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Welcome to the patents database online. - Enter Database

The basic patent is rarely the only protection involved and other process, chemical form or formulation patients may be relevant. These may all extend the effective patent life of a product. The basic expiry date can only be taken as a guide to the earliest possible date for any generic form to appear.

SPC - Supplementary Protection Certificate: this is a mechanism to guarantee a certain marketing exclusivity period for medicines throughout the EU, to allow for the extended development period they require. Current patents in the EU are valid for 20 years; an SPC applies from the date of first marketing of a product within the EU, and extends the effective patent life for up to 5 years, to allow up to a maximum of 15 years exclusivity.

The database is produced from various data sources including Martin Paltnoi Associates (MPA). The dates are believed to be reliable and every attempt is made to ensure that the information is current and accurate, but this is a complex area and it cannot be guaranteed that sources are always free of error. Because of this, and the complexity of patent protection noted above, it is advised that the dates are for guidance only. If you need definitive information on any specific drug, the current best available data can be obtained.

Drug groups

Specific groups of interest. There are some drug groups for which we get regular enquiries on the patent expiry dates for all the group. We have so far compiled group data on:

Statins PPI's
simvastatin
May 2003
omeprazole
April 2002
pravastatin August 2004 lansoprazole December 2005
fluvastatin August 2008 pantoprazole May 2009
atorvastatin November 2011 rabeprazole November 2012


Newer antidepressives - SSRI others
fluvoxamine
Expired 1996
mirtazapine
Expired†
fluoxetine Expired 2000 moclobemide February 2002
citalopram January 2002 reboxetine January 2004
sertraline October 2005 nefazodone March 2007
paroxetine October 2006* venlafaxine December 2008

* complex - this is our best guess

† but the 'ten-year rule' means a generic is unlikely before 2007 (for an explanation of the ten-year rule, see http://www.britishgenerics.co.uk/issuesTenYear.htm)

Calcium channel blockers
dihyropyridine type others
Amlodipine (Istin)
March 2004
Diltiazem
Expired
Felodipine (Plendil) March 2003 Verapamil Expired
Lacidipine (Motens) November 2005    
Nifedipine (Adalat etc.) Expired