Patent Term Adjustment in Canada and the US: A Comparison
By Julius Melnitzer | February 3, 2026 “Applicant behaviour during prosecution has little bearing on PTA in most instances in Canada.” — Jeff Leuschner Patent term adjustment (PTA)—the mechanism that extends a patent’s term beyond the usual 20-year expiry date when granting authorities have unreasonably delayed its issue—is now available in Canada, more than a quarter […]