Patent Term & Regulatory Delay
A pharmaceutical patent lasts 20 years from filing—but 5–10 of those years are typically consumed by clinical trials and regulatory approval. Illustratively, a patent filed in year one and granted around year five may not see drug approval until roughly year fifteen, leaving only about five years of remaining market exclusivity. Solutions: File patents early, even during preclinical stages; consider patent term extensions available in many countries; build multiple patent families (compound, formulations, methods of treatment, combinations); use trade secrets for manufacturing know-how; consider design patents for delivery devices.