Sammendrag
A supplementary protection certificate (SPC) is an intellectual property right which extends the period of protection for patented medicinal products and plant protection products. A central criterion for granting an SPC pursuant to Art. 3(a) Reg. 469/2009 is that the product is 'protected' by a basic patent in force. The topic for this thesis concerns products based on Markush formulas in the basic patent in relation to the requirement in Art. 3(a).