IPrime Rentsch Kaelin

IPrime Rentsch Kaelin has European and Swiss patent attorneys who resolve complete prosecution matters in technology, life sciences and chemistry. The firm provides litigation services through its legal arm, IPrime Legal.  

Notable patent practitioners: Rudolf Rentsch, Moritz Kälin, Thomas Kretschmer and Otto-Martin Willy Bertschinger. 

The firm represented MyStromer AG in litigation and filing before the Swiss Federal Patent Court. It also litigated on behalf of a biotechnology client before the Court of Milan. Contractual advice and prosecution services featured in 2024.  

Case highlights include opposition for a consultancy firm before the EUIPO with litigation and prosecution dimensions. It also acted for a renewable energy firm in portfolio management on the domestic market.