With its total number of patent applications projected to reach 20,000 by 2015, China National Petroleum Corp has announced a new intellectual property strategy, especially in marketing and international operations, said Sun Longde, vice-president of its subsidiary PetroChina Co.

CNPC is expected to file more than 6,000 patent applications between 2011 and 2015, with 3,000 expected to be inventions. It also plans to double its overseas filings in the period.

(Source: China Daily)