Effective patent life for drugs is often just 10 to 15 years, not 20, because clinical trials and FDA approval eat up years before sales even begin. Secondary patents and regulatory exclusivities now extend monopolies beyond original patent terms.
Effective patent life for drugs is often just 10 to 15 years, not 20, because clinical trials and FDA approval eat up years before sales even begin. Secondary patents and regulatory exclusivities now extend monopolies beyond original patent terms.