Patent Expiry Database
Patents usually expire after 20 years from the date of filing. When the patent expires, other manufacturers can apply for the abbreviated new drug application (ANDA) to the FDA for approval to market the generic version.
Supplementary Protection Certificate (SPC): A supplementary protection certificate (SPC) comes into existence only after the patent expiration of the innovative drug. It usually remains in force for a period of maximum five years.
Para IV: Para IV approve the exclusivity for 180 days to the first company which submits a completed ANDA (Abbreviated New Drug Application)
Market Exclusivity: Patent term extension is provided in the form of market exclusivity to compensate the application holder for the time lost and the heavy expenses incurred for the research & development of the drug.
Patent Expiry database of Chemxpert provides following information:
Patent related information for Paracetamol in Patent Expiry Database