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

of 25 June 1954 (Status as of 1 July 2023)

1Amended by No I of the FA of 3 Feb. 1995, in force since 1 Sept. 1995 (AS 1995 2879; BBl 1993 III 706).
Art. 125230

1 Where, for one and the same in­ven­tion, a Swiss pat­ent and a European pat­ent with ef­fect in Switzer­land have been gran­ted to the same in­vent­or or to his suc­cessor in title with the same fil­ing or pri­or­ity date, the Swiss pat­ent has no fur­ther ef­fect as from the date on which:

a.
the op­pos­i­tion peri­od against the European pat­ent has ex­pired without an op­pos­i­tion be­ing filed; or
b.
the European pat­ent has been main­tained in op­pos­i­tion pro­ceed­ings by fi­nal de­cision.

2 Art­icle 27 ap­plies by ana­logy.

230In­ser­ted by No I of the FA of 17 Dec. 1976, in force since 1 June 1978 (AS 1977 1997; BBl 1976 II 1).

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