A
cause of action for passing off is a form of
intellectual property enforcement against the unauthorised use of the
trade dress (the whole external appearance or look-and-feel of a product, including any marks or other indicia used) which is considered to be similar to that of another party's product, including any registered or unregistered trademarks. Passing off is of particular significance where an action for
trade mark infringement based on a registered trade mark is unlikely to be successful (due to the differences between the registered trade mark and the unregistered mark). Passing off is a common law cause of action, whereas
statutory law such as the
United Kingdom Trade Marks Act 1994 provides for enforcement of registered trademarks through infringement proceedings. Passing off and the law of registered trade marks deal with overlapping factual situations, but deal with them in different ways. Passing off does not confer monopoly rights to any names, marks, get-up or other
indicia. It does not recognize them as property in its own right. Instead, the law of passing off is designed to prevent misrepresentation in the course of trade to the public, for example, that there is some sort of association between the businesses of two traders. One recent example of its application by the
United Kingdom Intellectual Property Office can be found in a Trade Mark Opposition Decision in 2001. It was held that two brands of confectionery both named "Refreshers", one made by
Swizzels Matlow and one by
Trebor Bassett, which had coexisted since the 1930s, would deceive a consumer as to their source for some items but not for others. Both coexist in the marketplace. Some jurisdictions have adopted the passing off doctrine through competition law in parallel with trade mark protection. For example, in
China, according to
Supreme People's Court judicial guidance writings, dual, simultaneous liability for the same facts apply under both trademark and competition law. Justices Yan and Cao wrote that, in
Siemens Corporation v. Qishuai LLC (China Supreme People’s Court, 2022), "Qishuai registered a business entity for Shanghai Siemens Electronic Appliances Ltd. in Seychelles, which it argued gave a right to use the entity’s name on its products [...] using the Siemens name on the product infringed on the trademark, and using it on the trade dress and advertising is unfair competition." ==Required elements==