Federal Act
on Patents for Inventions
(Patents Act, PatA)¹

¹ Where, for one and the same in­ven­tion, a pat­ent res­ult­ing from a Swiss or in­ter­na­tion­al pat­ent ap­plic­a­tion (Art. 131 et seq.) and a pat­ent res­ult­ing from a con­ver­ted European pat­ent ap­plic­a­tion have been gran­ted to the same in­vent­or or to his suc­cessor in title with the same fil­ing or pri­or­ity date, the first pat­ent has no fur­ther ef­fect from the date on which the pat­ent res­ult­ing from the con­ver­ted European pat­ent ap­plic­a­tion was gran­ted.

² Art­icle 27 ap­plies by ana­logy.