Only registered trade and service marks are protected in the PRC: there is no common law protection for unregistered trademarks (except for "well-known" marks, as detailed below).
Amendments to the PRC's Trademark Law on October 27, 2001 allows three-dimensional trademarks and colours to be registered as trade marks. Collective and certification trademarks can also now be registered in China. "Well-known" trademarks are also now recognised under Chinese law (the courts and administrative bodies will take into account the level of knowledge of the trademark by relevant consumers, the length of use of the trademark, the amount of publicity given to the mark in China, and the history of the mark).
Trademark piracy is a rampant problem for trademark owners in China, despite the highly effective and speedy administrative raid procedure available to trademark owners under the auspices of the State Administration for Industries and Commerce.