China is a challenging environment for protection and enforcement of intellectual property rights (IPR). If you are considering doing business in China you should investigate the merits of an IPR protection plan as part of your strategy.
 
The best Protection is Prevention!
Though China is a party to international agreements to protect intellectual property rights (including WIPO, Bern Convention, Paris Convention, among others), a company must register its patents and trademarks with the appropriate Chinese agencies and authorities for those rights to be enforceable in China. Copyrights do not need to be registered but registration may be helpful in enforcement actions.
A brief summary of China's patent, trademark, and copyright laws are described below.

What’s China’s Laws and Regulations related to patent?
Patent:
China’s first patent law was enacted in 1984 and has been amended twice (1992 and 2000) to extend the scope of protection. To comply with TRIPs, the latest amendment extended the duration of patent protection to 20 years from the date of filing a patent application.
 
Chemical and pharmaceutical products, as well as food, beverages, and flavorings are all now patentable. China follows a first to file system for patents, which means patents are granted to those that file first even if the filers are not the original inventors. This system is unlike the United States, which recognizes the “first to invent” rule, but is consistent with the practice in other parts of the world, including the European Union. As a signatory to the Patent Cooperation Treaty in 1994, China will perform international patent searches and preliminary examinations of patent applications. Under China’s patent law, a foreign patent application files by a person or firm without a business office in China must apply through an authorized patent agent, while initial preparation may be done by anyone. Patents are filed with China’s State Intellectual Property Office (SIPO) in Beijing, while SIPO offices at the provincial and municipal level are responsible for administrative enforcement.

What’s China’s Laws and Regulations related to Trademark?
Trademark:
China’s trademark law was first adopted in 1982 and subsequently revised in 1993 and 2001. The new trademark law went into effect in October 2001, with implementing regulations taking effect on September 15, 2002. The new trademark law extended registration to collective marks, certification marks and three-dimensional symbols, as required by TRIPs. China joined the Madrid Protocol in 1989, which requires reciprocal trademark registration for member countries, which now include the United States. China has a ‘first-to register’ system that requires no evidence of prior use or ownership, leaving registration of popular foreign marks open to third party. However, the Chinese Trademark Office has cancelled Chinese trademarks that were unfairly registered by local Chinese agents or customers of foreign companies. Foreign companies seeking to distribute their products in China are advised to register their marks and/or logos with the Trademark Office. Further, any Chinese language translations and appropriate Internet domains should also be registered. As with patent registration, foreign parties must use the services of approved Chinese agents when submitting the trademark application, however foreign attorneys or the Chinese agents may prepare the application. Recent amendments to the Implementing Regulations of the Trademark Law allow local branches or subsidiaries of foreign companies to register trademarks directly without use of a Chinese agent.

What’s China’s Laws and Regulations related to Copyright?
Copyright:
China’s copyright law was established in 1990 and amended in October 2001. The new implementing rules came into force on September 15, 2002. Unlike the patent and trademark protection, copyrighted works do not require registration for protection. Protection is granted to individuals from countries belonging to the copyright international conventions or bilateral agreements of which China is a member. However, copyright owners may wish to voluntarily register with China’s National Copyright Administration (NCA) to establish evidence of ownership, should enforcement actions become necessary.

What’s China’s Unfair Competition Law?
Unfair Competition:
China’s Unfair Competition Law provides some protection for unregistered trademarks, packaging, trade dress and trade secrets. The Fair Trade Bureau, under the State Administration for Industry and Commerce (SAIC) has responsibilities over the interpretation and implementation of the Unfair Competition Law. Protection of company names is also provided by SAIC. According to the TRIPs Agreement, China is required to protect undisclosed information submitted to Chinese agencies in obtaining regulatory approval for pharmaceutical and chemical entities from disclosure or unfair commercial use. China’s State Drug Administration and Ministry of Agriculture oversee the marketing approval of pharmaceuticals and agricultural chemicals, respectively.