According to the Trademark Law, the following acts are infringement of the exclusive right to use a registered trademark: using a trademark similar to its registered trademark on the same commodity without the permission of the trademark registrant, or using a trademark identical to or similar to its registered trademark on similar commodities, which may easily cause confusion. So archaeopteryx's letter inversion is infringement.

The Trademark Law is divided into general provisions, application for trademark registration, examination and approval of trademark registration, renewal, alteration, transfer and use license of a registered trademark, invalidity of a registered trademark, management of trademark use and protection of the exclusive right to use a registered trademark, with a total of 73 supplementary provisions, which came into force on March 20 14 1983.