Riederer Hasler & Partner Patent Attorneys Ltd. serves its clients since 1967, when the Patent Law Office of Dr. C.A. Riederer was established. It maintains offices in Bad Ragaz (Switzerland) and Eschen (Liechtenstein).
 We are proud to advise and satisfy the needs of a large number of national and international companies since many years. We speak fluently German, English and French, the official languages of the European Patent Office.