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).


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Art. 20a64

Where an in­vent­or or his suc­cessor in title has ob­tained two pat­ents with the same fil­ing date or pri­or­ity date for the same in­ven­tion, the ef­fects of the pat­ent based on the earli­er ap­plic­a­tion cease in­so­far as the scope of pro­tec­tion af­forded by the two pat­ents is the same.

64In­ser­ted by No I of the FA of 3 Feb. 1995, in force since 1 Sept. 1995 (AS 19952879; BBl 1993 III 706).

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