Federal Act
on the Protection of Trade Marks and Indications of Source
(Trade Mark Protection Act, TmPA)

¹ The pro­pri­et­or may as­sign his trade mark in whole or in part for the goods or ser­vices for which it has been claimed.

² The as­sign­ment is only val­id if evid­enced in writ­ing. It is only ef­fect­ive in re­la­tion to third parties who are act­ing in good faith once it has been entered in the Re­gister.

³ Ac­tions un­der this Act may be brought against the pre­vi­ous pro­pri­et­or up to the entry of the as­sign­ment in the Re­gister.

⁴ Un­less oth­er­wise agreed, the as­sign­ment of an un­der­tak­ing also in­cludes the as­sign­ment of its trade marks.