Enforcement of modified European patents
One of the most successful products commercialised by pharmaceutical company F. Hoffmann La Roche is the osteoporosis medicine marketed under the trademark Bonviva. Two European patents covered this product. The first one (covering the active substance: ibandronic acid) expired in June 2011 while the second patent (covering a certain dosage and administration method) has an expiration date of May 2023.
