China、US、EP、and PCT Patent searching & watching; copy of patent document; patent related matters;trademark search.
China patent documents are becoming a very important prior art sources that should not be neglected.
The number of China's patent operations stood at more than 170,000 in 2016, a year-on-year increase of nearly 20 percent.Patent operations include patent transfer, license and pledge.
China received 21,600 Patent Cooperation Treaty applications in the first half of this year, a year-on-year increase of 16 percent. Among them, 1,600 applications were from abroad, an increase of 26 percent.
Data from the World Intellectual Property Organization show that 43,168 Patent Cooperation Treaty applications were filed from China in 2016.
Before 1984, China did not have any patent law. But in 2015, China's patent office received a record 1 million applications, the most reported in any country in a single year.