Wis. Stat. § 411.211: Warranties against interference and against infringement; lessee’s obligation against infringement.

(1) There is in a lease contract a warranty that for the lease term no person holds a claim to or interest in the goods that arose from an act or omission of the lessor, other than a claim by way of infringement or the like, that will interfere with the lessee’s enjoyment of its leasehold interest.

(2) Except in a finance lease, there is in a lease contract by a lessor who is a merchant regularly dealing in goods of the kind a warranty that the goods are delivered free of the rightful claim of any person by way of infringement or the like.

(3) A lessee who furnishes specifications to a lessor or a supplier shall hold the lessor and the supplier harmless against any claim by way of infringement or the like that arises out of compliance with the specifications.