Answered By: DCC Libraries
Last Updated: Jul 30, 2014     Views: 5

Drug patents expire 20 years after the date on which they are filed for.

Q1Medicare.com has a brand-name drug patent expiration search engine you can use to check on a specific drug you are interested in.

http://www.q1medicare.com/PartD-BrandNameDrugPatentExpirationsRX.php

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