Generally, terms may only be implied into contracts governed by the laws of England and Wales: • by statute, or • where common law tests are successfully applied Statutory implied terms relevant to intellectual property infringement Section 12 of the Sale of Goods Act 1979 (SGA 1979) implies the following terms, among others and subject to some exceptions, into relevant contracts: • goods are free, and will remain free until the time when the property is to pass, from any charge or encumbrance—SGA 1979, s 12(1) • the buyer will enjoy quiet possession of the goods—SGA 1979, s 12(2) Accordingly, a seller may be in breach of SGA 1979, s 12 if contrary third party property rights existed at the time of entering into contract or are subsequently enforced. See Microbeads v Vinhurst Road Markings, a patent case, which confirmed that both SGA 1979, ss 12(1) and 12(2) could be breached if there was a claim for intellectual property