Companies and organizations in the province filed 7,669 patent applications related to new-energy cars between 2009 and 2013. Guangdong accounted for 14.5 percent of the nation's total and was ranked top in the country, according to a report by the provincial IP authority and South China University of Technology. More than half of the applications focused on lithium battery technologies. BYD Co Ltd in Shenzhen was the top patent filer in the province with 626 applications.

(Source: China Daily)