definiens: means, on a Licensed Product - by - Licensed Product and country - by - country basis, the period from the First Commercial Sale of a given Licensed Product in such countryuntil the latest of ( a ) expiry of the last - to - expire Compound Patent containing a Valid Claim to theCompound in such country ; ( b ) expiry of the last - to - expire Licensor Patent containing a Valid Claim to theCompound in such country ; or ( c ) the [ * * * ] anniversary of the First Commercial Sale of such LicensedProduct in such country . In a country where neither any Compound Patent containing a Valid Claim to theCompound nor any Licensor Patent containing a Valid Claim to the Compound has ever existed nor everexists, the Royalty Term means on a product - by - product and country - by - country basis, the period fromthe First Commercial Sale of such product in such country until the [ * * * ] anniversary of such FirstCommercial Sale of such product in such country