Patents on allergy relief medications like Allegra and Claritin give the pharmaceutical companies that own the patents a sustainable competitive advantage for 17 years until the patent expires.
A sustainable competitive advantage is one which cannot be duplicated by the competitors of a pharmaceutical company, particularly in this instance, at the minimum up to the expiry of the patent.
A competitive advantage is a collection of distinctive characteristics of a company as well as its products which are recognized by the target market as noteworthy and superlative to the competition.
It can include factor or factors due to which the customers are liable to patronize a particular company and not its competition.
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